They replaced drummers when Enema Of The State came out but Tom DeLonge and Mark Hoppus were always in the band. I know everyone loves to hate this band but I've always been a fan largely because of Dude Ranch and Cheshire Cat. Those are their 2 best albums IMO because the sound was much more raw and unpolished.
its a band i dont like admitting that i like but i do really like some of their songs. for example: adams song, i still miss you, dammit, stay together for the kiRAB,etc.