Either Eberron or a homebrew, taking heavy influence from everything Dark Fantasy and WotC's Points of Light article(s). I tend towards the homebrew, because I want to see all new stuff (i.e. races) integrated, instead of either retconning or omitting stuff in Eberron. Plus: No artificer, that's a loss, but definitively Eberron after the new ECS.
EDIT: And since MtG's latest setting has caught my eye with their re-interpretation of classic fantasy themes, I see even more illustrations by WAR that I can mine for my "setting bible". PoL is drawing me... stronger and stronger!
Cheers, LT.