Reality Cooking
I'm ready to throw my support behind Bravo's Top Chef as the best cooking-themed reality show in recent memory. The Food Network's thing is too cutesy, and Hell's Kitchen on Fox a while back was never really in the running. For me, it was a toss up between Top Chef and Ming Tsai's almost-identical show on PBS. But at this point I'm convinced... higher production value and hot judges gives Top Chef the winning edge.
Unless, of course, you consider Iron Chef to be reality television, which would clearly surpass all competition by a pretty wide margin.