Question: Which breed is larger, Rough Collie or Boston Terrier?

Context paragraphs:
Rhett the Boston Terrier: Rhett is the official costumed mascot of the Boston University (BU) and the Boston University Academy (BUA) Terriers.  The Boston Terrier has been the BU mascot since 1922.  The often snarling, bi-pedal black and white Boston Terrier was later named after the male lead in Margaret Mitchell's "Gone with the Wind", because "No one loves Scarlett more than Rhett" referencing Rhett Butler's affection for Scarlett O'Hara (scarlet is BU's primary color).  In recent years Rhett has frequented Boston University games, events, and dining halls wearing his scarlet and white double-zero hockey jersey.  Other outfits include a basketball jersey and a referee uniform (typically worn during the short youth hockey games that take place during ice hockey intermissions).  However, he is also known to enjoy wearing his scarlet superhero cape when the occasion presents itself.  Like all mascots, Rhett and the Terrier logo are ubiquitous at athletic events.  The Terriers play varsity Division I intercollegiate sports in ten men's and twelve women's programs.  Rhett's nemesis is Baldwin, the Boston College eagle.

Craniomandibular osteopathy: Craniomandibular osteopathy, also known as lion's jaw, is a developmental disease in dogs causing extensive bony changes in the mandible and skull.  In this disease, a cyclical resorption of normal bone and replacement by immature bone occurs along the inner and outer surfaces of the affected bones.  It usually occurs between the ages of 3 and 8 months.  Breeds most commonly affected include the West Highland White Terrier, Scottish Terrier, Cairn Terrier, and Boston Terrier.  It is rare in large-breed dogs, but it has been reported.  Symptoms include firm swelling of the jaw, drooling, pain, and difficulty eating.

Rough Collie: The Rough Collie (also known as the Long-Haired Collie) is a long-coated breed of medium to large size dog that in its original form was a type of collie used and bred for herding in Scotland.  Originating in the 1800s, it is now well known through the works of author Albert Payson Terhune, and through the "Lassie" novel, movies, and television shows.  There is also a smooth-coated variety; some breed organisations, including both the American and the Canadian Kennel Clubs, consider the smooth-coat and rough-coat dogs to be variations of the same breed.  Rough Collies generally come in shades of sable, merles, and tri-coloured.  This breed resembles a bigger version of the Shetland Sheepdog.

Lassie (manga): Lassie (ラッシー , Rasshī ) is a two volume manga series written by Yoshihiro Takahashi and published by Shueisha in 2001.  "Lassie" follows a rough collie named "Lassie" as he searches for his beloved friend Akutsu, who he wants to be his owner.  Though named for the famous fictional collie from books, movies and television series in the United States, Takahashi's Lassie is male, and has little in common with the American Lassie other than a shared name and being the same breed.

Smooth Collie: The Smooth Collie is a breed of dog developed originally for herding.  It is a short-coated version of the Rough Collie of Lassie fame.  Some breed organisations consider the smooth-coat and rough-coat dogs to be variations of the same breed.

Pal (dog): Pal (June 4, 1940 – June 1958) was a Rough Collie performer and the first in a line of such dogs to portray the fictional female collie Lassie in film and television.  Pal was born in California in 1940 and eventually brought to the notice of Rudd Weatherwax, a Hollywood animal trainer.  In 1943, the dog was chosen to play Lassie in MGM's feature film, "Lassie Come Home".  Following his film debut, Pal starred in six more MGM "Lassie" films from the mid-1940s to early 1950s, then appeared briefly in shows, fairs, and rodeos around the United States before starring in the two pilots filmed in 1954 for the television series, "Lassie".  Pal retired after filming the television pilots, and died in June 1958.  He sired a line of descendants who continued to play the fictional character he originated.  In 1992, "The Saturday Evening Post" said Pal had "the most spectacular canine career in film history".

Boston Terrier: The Boston Terrier is a breed of dog originating in the United States.  This "American Gentleman" was accepted in 1893 by the American Kennel Club as a non-sporting breed.  Color and markings are important when distinguishing this breed to the AKC standard.  They should be either black, brindle or seal with white markings.  Bostons are small and compact with a short tail and erect ears.  The AKC says they are highly intelligent and very easily trained.  They are friendly and can be stubborn at times.  The average life span of a Boston is around 11 to 13 years, though some can live well into their teens.

Teddy Roosevelt Terrier: The Teddy Roosevelt Terrier is a small to medium-sized American hunting terrier.  Lower-set with shorter legs, more muscular, and heavier bone density than its cousin the American Rat Terrier.  There is much diversity in the history of the Teddy Roosevelt Terrier breed and it shares a common early history with the American Rat Terrier, Fox Paulistinha and Tenterfield Terrier.  It is said the Rat Terrier background stems from the terriers or other dogs that were brought over by early English and other working class immigrants.  Since the breed was a farm, hunting and utility dog there was little to no planned breeding other than breeding dogs with agreeable traits to each other in order to produce the desired work ethic in the dog.  It is assumed that the Feist (dog), Bull Terrier, Smooth Fox Terrier, Manchester Terrier, Whippet, Italian Greyhound, the now extinct English White Terrier, Turnspit dog and or Wry Legged Terrier all share in the Teddy Roosevelt Terrier's ancestry.  These early Ratting Terriers were then most likely bred to the Beagle or Beagle cross bred dogs (for increased scenting ability) and other dogs.  Maximizing the influences from these various breeds provides the modern Teddy Roosevelt Terrier with a keen sense of awareness and prey drive, an acute sense of smell and a very high intellect.  Although they tend to be aloof with strangers they are devoted companion dogs with a strong desire to please and be near their owners side at all times.

American Russell Terrier Club: The American Russell Terrier Club (formerly named the English Jack Russell Terrier Club), founded by JoAnn Stoll in 1995, was the first registry in the United States to maintain the Russell Terrier as a separate breed from the Parson Russell Terrier.  The American Jack Russell Terrier Club is affiliated with both the United Kennel Club and the American Kennel Club.  The purpose of the early founders was to establish a registry for the perpetuation and development of the Russell Terrier as a pure strain of working Jack Russell Terrier keeping their blood and type pure within the registry to works towards Kennel Club recognition as an official breed in the US.  On January 1, 2001, the United Kennel Club recognized the Russell Terrier as an official breed, designating only the stock from the American Russell Terrier Club as Foundation stock for the UKC Russell Terrier.  In 2004 the American Russell Terrier Club submitted an official request to include the American Russell Terrier Club stock into the AKC FSS Program to work towards becoming an official breed under the perimeters.  On December 8, 2004, the AKC officially accepted the Russell Terrier.

Shetland Sheepdog: The Shetland Sheepdog, also known as the Sheltie, is a breed of herding dog.  The original name of this breed was Shetland Collie, but this caused controversy among the Rough Collie breeders at the time, so the breed's name was formally changed to Shetland Sheepdog.  This small dog is intelligent, vocal, excitable, energetic and willing to please and work hard.  The breed was formally recognized by The Kennel Club in 1909.

Supporting paragraphs: Rough Collie Boston Terrier
Answer: Rough Collie