i suggested a while back a prime hunter pvp, where it is one guy against a team. the one guy as added bonuses or the team has handicaps. would just be a cool thing, 3 man teams tackling the hunter while he isolates one and blasts them off... epic :P

o and ctf would be interesting lol. maybe have one team member BE a flag, and only by killing him can you get points.

and

DOTA!!!!!!!!!!!