I used to like MP games, but I have a hard time with them these days. If I get a good group of friends I can rely on, it fine, but ending up with pugs is hellish. People get downright nasty if you make even the smallest mistake. I get so self conscious of messing up, that I'm afraid to join groups.
So many games have these intricate instances where everyone has to be coordinated, and if you don't know what to do, you're screwed, yet how are you ever supposed to learn?
My of my favourite old games, Aion, used to be PVPVE, so you could either group up, or go off and do your own thing. Then it became open world PVP, and unless you have a group of geared friends around you, you can't play. It's sad that the game lost its community and became a coliseum.