The matchmaking and lag in this game is horrible. If I have to deal with lopsided teams or ridiculous lag I will quit every time. I could care less about the stupid stats. It's hilarious how people have to party up just so they can get easy wins.
What really needs to happen is a change in party matchmaking. There should be a mode for parties of 5. That mode should be ONLY for parties of 5 (If you don't have a party of 5 then you go play with randoms). If you are playing in other modes with randoms then there should be only 2 people allowed to party together while the rest is filled with randoms. It's the only way matchmaking will get better.