Currently I don't play any MMOs. I've played Ultima Online and EverQuest. Also a very little of FFXIV. And even EverQuest was just a 6-8 month splurge of obsession before I quit. Ultima Online was the only one I played for over a year, when I was 12-14 or so. I also started playing again a bit later with some EoFFers (both on the new game, and just a couple of years ago on a free fan-made server). Old school UO remains one of my best gaming experiences.