I hated Steerpike from Gormeghast. Kellhus from The Prince of Nothing series, gives me the creeps. Couldn't stand Fitz, from the Farseer books. Thomas Covenant I didn't have a problem with. Polgara from Belgaraid and Mallorean in fact all of Eddings female characters are unlike-able.
Polgara was not likable in the beginning but towards the end ,I got to like here a bit. Steerpike a villain no question but I could understand his motives and resentments given the place he lived. He lived in godawful Gormeghast.