Just to join in on what everyone else has said every other post....
TF2, assuming you get a decent server, which isn't hard to find, it took me months to get anyway decent and to find out what I'm good at (Soldier, despite not being my favourite) and got virtually no greif, except fro ma couple of trolls, but they were trolls, and were generally trolling, so that doesn't count.
If you're going "MMO", Guild Wars, nice mature community, just dont' go near Pvp, they are elitist as hell, so don't go near that until you know every imaginable acronym, get a decent guild and yer sorted.
TF2, assuming you get a decent server, which isn't hard to find, it took me months to get anyway decent and to find out what I'm good at (Soldier, despite not being my favourite) and got virtually no greif, except fro ma couple of trolls, but they were trolls, and were generally trolling, so that doesn't count.
If you're going "MMO", Guild Wars, nice mature community, just dont' go near Pvp, they are elitist as hell, so don't go near that until you know every imaginable acronym, get a decent guild and yer sorted.