I second the Empire trilogy and David Gemmell, although IMO Empire is probably closer to Hobb's style. I think because of their collaboration, Empire became rather unique and a completely different animal from anything else either Wurts or Feist wrote on their own (and yes, it's much better than Riftwar). Only problem is there are only three books
But, if you really want the full dose of anti-heroism, Hobbs' Soldier Son Trilogy is your best bet. I almost got clinically depressed reading it, and will never make it to book 3. Or you can always go for Stephen Donaldson. Any of his series would do (Thomas Covenant, GAP series, Mordant's Need). Donaldson's worlds don't have heroes, only anti-heroes.
- Dreir -