When I lose against good opponents, I respect them for being awesome. Afterwards I get the urge to fight them again to get better and try to beat them. If I lose against bad opponents it's usually because of bad luck and I take it like a man.
I don't take it well, honestly. When I'm playing with friends I'll hold back the hate, the fact I'm having fun playing with people I know helps. I get pretty pissed off whenever I lose a match with people I don't know (you guys count as people I know). Basically, to convince myself I don't suck I have to win like, 3, 4 maybe even 5 online matches in a row without losing before turning off my game. Though when I say someone's over powered, I actually mean it. I get pissed at Raiden and Kratos, those guys are just spammers, but i know I can practice to beat them. The only one I've ever come really close to quitting with was Sackboy, I did once or twice before, but not now. That level 3 super pisses me off. I hate losing so much knowing skill isn't in the equation. It's definitely BS there's a definite 6 kills, maybe more. Sure you can stop him by stopping him from getting it, but he's average, and then some, so that shouldn't happen.
Robbit (Jumping Flash!) definitely most wanted AND deserving for PS All-Stars Battle Royale!!! Also, Sullivan is still a dirty old man.