So, don't let the other guy have the cool, fun thing as well as you, sit there and wait boredly in order to exploit the game just because it gets to be a slog for everyone. Seriously, what the hell makes it any different than 1v1, then? I mean, other than the ability to not wait around for the other half of your team to finish before you get involved and the option to sort of pick who you're going to fight. If 2v2 is going to be the same thing as 1v1, then why have 2v2? I'd get it if you're supposed to be having an MLG tournament or some shit where everything has to be equal the whole time, but the revenge meter is a fun equalizer to go up against, and ambushing people from behind after defeating the other dude is pretty much the only reason to finish first.
If I wanted to have a 1v1 fight, I'd go into 1v1. I do gank people, because it adds variety to what was otherwise two repettitive 1v1s that slightly overlap each other. And I fully expect to be ganked if the other guy dies, and that's also fun. If the other guy shits himself over it, then sure, I'll run to the other side and fight the guy with the Revenge meter he's so pissed about, but honestly, I've never had that problem, because, y'know, that's the point of 2v.