I play Guild Wars 2 occasionally.
When TERA Online will go Free-to-play I will start playing that again.
The Elder Scrolls Online looks cool. So gonna play a Dunmer (Dark Elf). ^^

I am looking forward to World of Darkness MMO, if ever that will release.

I don't think I'm going to go back to TERA even after it goes F2P. It's too grindy for my taste. I shouldn't have to do 18 quests to gain one level with little else in the way of rewards.

Now Guild Wars 2, I liked for the most part. My main character is level 80 and done with the personal story (that is, if they haven't added anything past defeating Zhaitan yet... I know there have been some events but I stopped playing for the most part after clearing the PS). My problem with GW2 is that I never really felt like I was strong enough as I was progressing through the game. Even if I was at the proper level for story quests, I was struggling through them, and thanks to my playing an elementalist, some of them were downright impossible. That, and the Risen enemies were too strong at all times unless there was a zerg DE going on. Other than those issues, I had fun with the game and I may go back to it sometime soon.

I've only played World of Warcraft and DC Online. Both I played for awhile, but never got deeply into them. I wish they put MMO's on consoles more. I would probably play DC Online more if I had a PS3. I just can't stand to sit at a computer and play a game, just weird to me. Elder Scrolls Online looks pretty interesting, but again it's on the PC. I'm really hoping that the next gen xbox allows for MMO play.