I agree, tomb of the giants is pretty awesome.
My least favorite area is dukes archives... god I hate that place.

So, I've been playing like only on weekends, but my strength build has beaten Seath and Nito
Now for Izalith(godddd) and new londo ruins.
The hard part of this game is over.

Though, I will never cheese the final boss with parrys, poise stacking, or any of that crap. I want to have an epic fight with a farrr slower weapon (Greataxe).