Heavy Load was a Swedish heavy metal band from Stockholm.
 The band is often hailed as the first Swedish heavy metal band, and were known for their Viking themes.
 The Wahlquist brothers, who founded the band in 1976 along with Michael Backler, were later producers and owners of Thunderload Records in Sweden, were at one point producing Veni Domine, and also were considering releasing a new album, though that never occurred.
 Misfortune struck when Thunderload Studios got severely damaged due to a water leakage in the 2000s, which meant a halt to its official existence.
 After the breakup, the members then went on and performed with other bands.
The Rockfords were an American rock band formed in Seattle, Washington, in 1999 by Carrie Akre, Chris Friel, and Danny Newcomb of Goodness, Mike McCready of Pearl Jam, and Rick Friel of Jodie Watts.
 The group served as a side project for its members, who had already tasted success with their respective bands.
Massacration is a Brazilian satirical heavy metal band, self-proclaimed "greatest and most classic heavy metal band, the inspiration behind most heavy bands since 1985, whose members' hairdos and posing influenced the whole heavy metal culture".
 The classical line-up consists of Detonator (vocal, Bruno Sutter), Blondie Hammet (lead guitar, Fausto Fanti), Metal Avenger (bass guitar, Marco Antônio Alves), Jimmy "The Hammer" (drums, Felipe Torres) and Headmaster (rhythm guitar, Adriano Pereira).
Girlschool are an all-female British heavy metal band, founded in 1978.
 The original members Kim McAuliffe, Enid Williams, Kelly Johnson and Denise Dufort come from the club cover band Painted Lady.
 During the early 1980s the band was one of the relevant groups of the new wave of British heavy metal (NWOBHM) movement, entering the British charts with both singles and albums.
 Unlike many heavy metal bands, Girlschool often had more than one lead vocalist, with vocal duties in the 'classic' line-up shared amongst Williams, McAuliffe and Johnson.
Michael David "Mike" McCready (born April 5, 1966) is an American musician who serves as the lead guitarist for the American grunge band Pearl Jam.
 Along with Jeff Ament, Stone Gossard and Eddie Vedder, he is one of the founding members of Pearl Jam.
 McCready was also a member of the side project bands Flight to Mars, Temple of the Dog, Mad Season and The Rockfords.
 He is also the proprietor of Hockey Talkter Records.
The Heavy are a British rock band from Bath, Somerset, England, formed in 2007 and signed to Ninja Tune imprint Counter Records and the Bad Son Recording Company.
 The band consists of Kelvin Swaby (vocals), Dan Taylor (guitar), Spencer Page (bass guitar) and Chris Ellul (drums).
 They have released four albums as well as a wide array of singles.
 Their music has been widely used in media, with their 2009 single "How You Like Me Now?
" being used the most and becoming the band's signature song.
Absolute Steel is a Norwegian heavy metal band from Larvik.
 Formed in 1999, the band’s founding members were Andy Boss (lead guitar), Dave Bomb (lead guitar) and K2 (vocals).
 Throughout the late 1990s they played live performances and developed a heavy metal party band style that caught the attention of Edgerunner Records, a local heavy metal label.
 In 2002, the label released "The Fair Bitch Project", the band's debut recording.
 Performances after the release further defined their style by featuring female strippers and pyrotechnics.
The Almighty are a hard rock/heavy metal band, from Glasgow in Scotland who formed in 1988.
 Three of the founding members, Ricky Warwick, Stump Monroe and Floyd London were friends who met at school.
 Although the band members musical roots were in punk, The Almighty adopted a more heavy metal/hard rock oriented musical direction in their early years.
 Later albums saw the band's musical style move towards the band members' original punk roots.
Acrassicauda is an American-based Iraqi heavy metal band formed in 2001.
 It is often credited as being the first heavy metal group to emerge from Iraq.
 The original band consisted of three Arab members and one Assyrian (Tony Aziz Yaqoo).
 The band formed and played concerts under the regime of Saddam Hussein.
 It became well known outside of the local Iraqi metal scene after Vice magazine did a profile of the band.
 It received even greater coverage when it was profiled in a feature-length documentary about the band and its troubles in Iraq called "Heavy Metal in Baghdad".
 The band's first album was released on March 9, 2010.
Kylesa is an American heavy metal band that was formed in Savannah, Georgia.
 Their music incorporates experimentalism with heavy riffs, drop-tuned guitars and elements of psychedelic rock.
 The group was established in 2001 by the former members of Damad, with the addition of guitar player Laura Pleasants who is from North Carolina.
 The band has since undergone line up changes; the remaining original members are Phillip Cope and Laura Pleasants.
 In 2006, the band added two drummers (Carl McGinley of Unpersons, from Savannah, and Jeff Porter).
 Eric Hernandez (of Capsule, from Miami) joined in 2008 to replace Porter.
 The dual drum tracks are often panned strongly to the right and left.

Question: Which band had more members, The Rockfords or The Heavy?
Answer: The Rockfords