Which band contained more members, Two Door Cinema Club or Cowboy Junkies?
Two Door Cinema Club:  The band formed in 2007 and is composed of three members: Alex Trimble (vocals, rhythm guitar, beats, synths), Sam Halliday (lead guitar, backing vocals), and Kevin Baird (bass, synths, backing vocals). Cowboy Junkies: Cowboy Junkies are a Canadian alternative country/blues/folk rock band. Cowboy Junkies:  The group was formed in Toronto in 1985 by Margo Timmins (vocalist), Michael Timmins (songwriter, guitarist), Peter Timmins (drummer) and Alan Anton (bassist).
Cowboy Junkies