Bowza! Seriously, his performance in BIS gave me great respect for him, not to mention having the best boss musics of all time.
I completely agree. BIS is one of my all time fav. Mario games, mainly since you get to be Bowser a lot. I want revenge on Fawful and his stupid pink armadillo thing side-kick SO bad! Plus, Bowser's humor makes it hilarious, like the Paper Mario series.