That whole "tier" list is dumb or whatever the hell its called. Worryin about that crap will get you killed in a fight. All the kids who think their hot stuff just cuz they spam toon links weapons(wich isnt to say hes not good).
Just stick to whoever your comfortable with using and master their moves. Dont let people saying that your main sucks keep you from usin em. Best thing you can do is mop the floor with em.
Olimar is a little tough for me but I dont think he sucks.
The so calles "Dumb Asses" are probrably some of the best brawlers on the site.