I know the first Dungeon Siege was a load of goat bollocks, but the sequel was really fuckin' good. The recent expansion, Broken World, is pretty good too -- there's some really challenging tactical battles and bosses. It's anything but a potion-drinking simulator these days -- you really gotta micro your party well and come correct to the big fights.
Outside of the dated graphics, why the hate (or lack of love)? It has better loot tables than Titan Quest, for sure, and the expansion adds some awesome dual-class talent trees.