Yeah, I totally agree, it's just that if it's a fun mode I see no reason not to have it just because brawl has it too
I think they could combine the two
so a stamina bar that goes down, and a super metre that goes up
and when you hit someone with a super, it drains a MASSIVE ammount of the stamina/health bar
this way inlcuding awesome supers, but perhaps stopping 4x4 matches just being a "race of AP"