I haven't got to play doom 3 except messing around with demo machines at fry's. How did I leave out QW?
As for all those other games, I have played them all (except UT99 and unreal 2) to ad nauseam
As an after thought, older games worth playing would be starcraft, unreal, UT99, UT2k4, and unreal 2. I am not a big fan of the latest UT, i think the original was the best. It had the cows after all