Halo 3--I may only be a commander (no matter what i do i can't go up) but i'm actually pretty damn good, I almost never go negative, I really only go negative when i go up against restarter accounts or my teammates quit.

Guitar Hero/Rock Band.  For the leaderboards i think i'm around the 20,000 spot average, and i rarely lose online.

And i'm pretty good at most racing games.

Diablo II, Goldeneye 64, Civilization 4 and of course, Counterstrike.

LittleBigPlanet.

The game has literally the best drop in, drop out multiplayer I've ever seen. Seriously, all it takes is a simple press of the PS button on controller 2 or an invite shot to a friend on PSN, and you can have a second (or third, or fourth) player join you at ANY time, no matter WHAT you're doing. You could be in your pod, waiting for a level to load, or finishing up a level, and your friends will appaer right next to you.

After that, it's a whole lot of slapping your buddies around, and other bits of comic mischief that make the game an absolute blast to play.

Warcraft III, DOTA map, for LAN games
Diablo 2
Super Mario Kart
Donkey Kong Country 2
Mortal Kombat 2
Secret of Mana
Call of Duty 4
Counter Strike

little big planet cos its so fun playing with others and killzone 2 just cos the snipers so awesome

Super Mario Kart and some Bomberman game I don't remember the name of.

This gen: CoD 4: MW

I find it almost impossible to hit anyone with the snipers.

yeah KZ2 sniper kinda sucks with that insane recoil.

R2.BF43 or L4D

SSB:Brawl, Mario Kart: Wii, CS1.6, AoEII, Time Splitters 2