Quote Originally Posted by Del Murder View Post
4 makes more sense, in a 3-way one could just hide while the others duke it out.
Therein lies another layer of complexity. Are you the one who's stealthy enough to lie in wait while one of the fighters takes out your potential opponent or will you be the one forced to battle at the point of exhaustion while your new enemy is fresh for the fight? In some cases, the character/player levels may not be equal and may require two combatants to willingly gang up on the third just to survive.
I think Halo is like this to an extent, though I don't have much experience with the game.

My main problem with 2 on 2 battles is that usually both on one side have to survive, being that if one loses, both default.