What to purchase da origins or thief?

Origins

Thief, i thought it was a great game. couldnt get into DA Origins myself.

apples or oranges? completely different games. You can't compare something if you don't have common ground.

Considering that DA: Origins is still $1 on the Humble Origin Bundle 2, that's a no brainer. Unless Thief is similarly discounted somewhere and I don't know about it. :)