I'm using Old Skool because I like the header image. I moved from the brown one to the original blue one a while back, before changing to Old Skool under Jowy's recommendation. I will check out the two you mentioned. After all the abominations you've unleashed on us before, however, my expectations are low.

EDIT: And deservedly. Who the hell can stand staring at a bright white screen? Kupo is better, but can't hold a candle to the originals.