4 people means a 128 man bracket, so i think it's 2 for a 64 man bracket
Op, it would seem WF and L(S?)F are played out. I still get the feeling 4 people can make it out but... i'm not sure.
@FAE: Unfortunately I haven't played against Attila as he's not in my state. That said, I hear he's more or less a league above most Aussie players. He uses Snake, ICs and Falco iirc and expect him to know his stuff.
Tbh I've never found the Snake MU to be hideous, nothing like Ness or Lucas vs. Marth. He feels like a solid -2 to me but... eh.
Anyway, Just remember that all of those characters can do nasty things to you if you get grabbed. that said, our magic is apparently really good at splitting up the ICs and we're also really good at harassing one of them once we have them split. I haven't played the MU at a high level but from my experience, PK fire on snake is amazing (grenades either get dropped or blow up in his face) and Falco you just have to be wary of what he's doing and react accordingly and you're pretty good.
You probably know ^ already though. In any case, BC will probably know more about Attila than I do, i'll ask him to share his thoughts.