I'm not usually them either, I'm mostly Wolf, with either Yoshi(yellow) or Kirby(Blue) in second. Then Falco, last one, #5 is Fox (I don't like his speed and jumping, but I still play as him, 'cause he's Fox =D which is my fave. animal BTW)
characters I completely can't use & suck as are: King Dedede, Lucas & Ness, Ganondorf (crappiest charcter, nothing more said xD), C. Falcon (Falcon Puuuunch!), Zelda, PEACH, and Sonic. Ganondork is #1 crappiest char. for me.