PS3 for me, I have 2 accounts that I bounce back n forth from but my main one is..
Obi-Bob_Kenobi
and the secondary is..
Sithulhu
I don't have too much multiplayer experience as I rarely ever do it but for online games I got..
AVP (2010), A:CM, Dead Space 3, Dead Island, GTA 5, Metal Slug 3 & others, I just can't think of what all I got off the top of my head.