Umbacano is quite the philanthropist

Just do his quests! That and finishing the Daedra quests were right behind the DB line of quests in my book!
Well behind but still fun were the Thieves Guild and Mages Guild, and then some of the random quests were really fun (like dreamworld and painted room). Then the Arena, which was fun but pretty vanilla.
Well behind were the lame, terrible Fighter's Guild quests. To me they were the worst part of the game and I stilll haven't brought myself to finish them.