Pretty much all of them, sadly. Only a very few uniques, at the end of some of the more involved quests, ever saw much use. What bugs me most, is all the radiant quests where they toss you 25 or 50g as a reward, even if you're lvl 60 and have 500k gold in your pocket.

They need to do a bit of level-matching on their rewards system. Not that I really care, I guess, but still. Stopped doing radiants long ago as boring and pointless.