Someone like Gus is pretty erratic of course and games seem to be build around him but he was the biggest winner in hi-lo last year, and still significantly up this year in that game, and in plo like someone else said, it really only is a few buyins in the huge variance game that 200-400 is (especially with his style), that he is down this year.
Prety sure he is up in Horse too.

Of those not mentioned, maybe Eli would be a good choice for worst.
Donates in plo, hi-lo and horse.