Day 28 - Share whose inspiring game excellence you're grateful for.
Difficult question for me.
I would have to say that the person who's game excellence I admire and am grateful for the most is Robin D. Laws. Robin has done a lot of work on various games and is an active podcaster as well. Robin's stuff is just superb, and he really gets into the underpinnings of rpg design, play, and GMing. And his writing is superb!