anyway, the main things I'm looking for are
character customisation. much as I enjoyed the Witcher, I tend to prefer games where I can design my own character. bonus points if different race/gender/clan etc makes more than just a visual difference and offers additional replayability
single player. I have WoW for when I want to play with other people, sometimes though I just want to kill some time on my own
preferably third person, but not essential
good story
for reference I've already played Morrowind, Vampire: Bloodlines, Mass Effect, Dragon Age, Knights of the Old Republic, Baldurs Gate, Neverwinter Nights, Fallout and their respective sequels (except for DA2 of course, my time machine's broken)