Question: Which dog breed has more current puppies, Dogo Cubano or German Spaniel?

Context paragraphs:
Welsh Springer Spaniel: The Welsh Springer Spaniel is a breed of dog and a member of the spaniel family.  Thought to be comparable to the old Land Spaniel, they are similar to the English Springer Spaniel and historically have been referred to as both the Welsh Spaniel and the Welsh Cocker Spaniel.  They were relatively unknown until a succession of victories in dog trials by the breed increased its popularity.  Following recognition by The Kennel Club in 1902, the breed gained the modern name of Welsh Springer Spaniel.  The breed's coat only comes in a single colour combination of white with red markings, usually in a piebald pattern.  Loyal and affectionate, they can become very attached to family members and are wary of strangers.  Health conditions are limited to those common among many breeds of dog, although they are affected more than average by hip dysplasia and some eye conditions.  They are a working dog, bred for hunting, and while not as rare as some varieties of spaniel, they are rarer than the more widely known English Springer Spaniel with which they are sometimes confused.

Guatemalan Dogo: Guatemalan Dogo ("Dogo Guatemalteco"), formerly known as the Guatemalan Bull Terrier ("Bullterrier Guatemalteco"), and Guatemalan Mastiff, is a Molosser-type dog breed originating in Guatemala.  It is neither recognized by the Fédération Cynologique Internationale (FCI) nor the American Kennel Club (AKC).  However, it has the official national recognition of the Asociación Canofila Guatemalteca (ACANGUA) where it belongs to the Group 2.2.1 - Mastiffs.  As the unique breed originating in Guatemala, it is also the national dog of the country.  Nowadays it has spread to various other countries, such as the USA.

Alpine Spaniel: The Alpine Spaniel is an extinct breed of dog which was used in mountain rescues by the Augustinian Canons, who run hospices in the region around the Great St. Bernard Pass.  The spaniel was a large dog notable for its thick curly coat.  One of the most famous specimens of the Alpine Spaniel is Barry, however his preserved body has been modified on more than one occasion to fit with descriptions of the extinct breed from earlier time periods.  Due to the conditions in the Alps, and a series of accidents, extinction was discussed as a possibility by authors during the 1830s, and at some point prior to 1847 the entire breed was reduced to a single example due to disease.  Evidence held at the Natural History Museum in Bern show that two distinct breeds of dog were being used in the area during this time period.  The breed is thought to be the predecessor to the modern St. Bernard and the Clumber Spaniel.

English Springer Spaniel: The English Springer Spaniel is a breed of gun dog in the Spaniel family traditionally used for flushing and retrieving game.  It is an affectionate, excitable breed with a typical lifespan of twelve to fourteen years.  They are very similar to the Welsh Springer Spaniel and are descended from the Norfolk or Shropshire Spaniels of the mid-19th century; the breed has diverged into separate show and working lines.  The breed suffers from average health complaints.  The show-bred version of the breed has been linked to "rage syndrome", although the disorder is very rare.  It is closely related to the Welsh Springer Spaniel and very closely to the English Cocker Spaniel; less than a century ago, springers and cockers would come from the same litter.  The smaller "cockers" hunted woodcock while the larger littermates were used to flush, or "spring," game.  In 1902, The Kennel Club recognized the English Springer Spaniel as a distinct breed.  They are used as sniffer dogs on a widespread basis.  The term "Springer" comes from the historic hunting role, where the dog would flush (spring) birds into the air.

Dogo Cubano: Dogo Cubano also known as the Cuban Mastiff, Cuban Dogo and Cuban Dogge is an extinct dog breed from Cuba.  It was of the Bull Mastiff type and was used for dog fighting.

Breed standard (dogs): A breed standard (also called bench standard or the standard) in the dog fancy is a set of guidelines covering specific "externally observable" qualities such as "appearance", "movement", and "temperament" for that dog breed.  Breed standards are not scientific documents, but are written for each breed by clubs of hobbyists called breed clubs for their own specific requirements.  Details and definitions within breed standards for a specific dog breed may vary from breed club to breed club and from country to country.  Dog breed standards are similar in form and function to breed standards for other domesticated animals.

King Charles Spaniel: The King Charles Spaniel (also known as the English Toy Spaniel) is a small dog breed of the spaniel type.  In 1903, the Kennel Club combined four separate toy spaniel breeds under this single title.  The other varieties merged into this breed were the Blenheim, Ruby and Prince Charles Spaniels, each of which contributed one of the four colours available in the breed.

German Spaniel: The German Spaniel, also known as the Deutscher Wachtelhund (German quail dog), is a breed of dog that was developed in Germany around 1890, and is used as a hunting dog.  Descended from the old German breed, the Stoeberer (lit.  "rummager"), which became popular with commoners following the Revolutions of 1848 in the German states, who required a versatile hunting dog.  Stoeberer is now a type of hunting dog in Germany with the Wachtelhund being its sole member.  The breed is not very well known outside of Germany, but was recognised by the United Kennel Club in 1996.

American Cocker Spaniel: The American Cocker Spaniel is a breed of sporting dog.  It is a spaniel type dog that is closely related to the English Cocker Spaniel; the two breeds diverged during the 20th century due to differing breed standards in America and the UK.  In the United States, the breed is usually called the Cocker Spaniel, while elsewhere in the world, it is called the American Cocker Spaniel in order to differentiate between it and its English cousin, which was already known as "Cocker Spaniel" before the American variety was created.  The word "cocker" is commonly held to stem from their use to hunt woodcock in England, while "spaniel" is thought to be derived from the type's origins in Spain.

Toy Bulldog: The Toy Bulldog is an extinct dog breed that existed in England at 18th and early 19th centuries.  Breeders were working in two different directions to create this breed.  One was to downsize the Bulldog.  This was not very successful due to complications with breeding sub-regular size dogs of this breed together.  The dwarf size Bulldog puppies were and still are occasionally born out of regular size parents, but they were neither the healthiest, nor the most fertile dogs.  They often produced regular-size puppies.  Thus, this version of the breed had never been established.

Supporting paragraphs: Dogo Cubano German Spaniel
Answer: The German Spaniel