Between Rooney and Lostprophets, which group has more members?
Rooney (band): Rooney is the primary musical project of singer-songwriter Robert Schwartzman, evolving from its origin as an American rock band formed by high school friends in Los Angeles. Rooney (band):  Before Schwartzman decided to continue the project in a different direction, the band's most enduring line-up consisted of Schwartzman (lead vocals, guitar), Louie Stephens (keyboards, piano), Taylor Locke (lead guitar, backing vocals), Matthew Winter (bass guitar) and Ned Brower (drums, backing vocals). Rooney (band):  The band is named after Ed Rooney, the principal in "Ferris Bueller's Day Off". Lostprophets:  Founded by lead vocalist and lyricist Ian Watkins, bassist (later guitarist) Mike Lewis, drummer Mike Chiplin and guitarist Lee Gaze, they were originally a side-project to hardcore punk band Public Disturbance.
Rooney