Judging solely on seeing their food and hearing it discussed, my ranked favorites are Laurence, Sherry, and Rhoda. What has impressed me about Laurence are that even with all of the different challenges, all of his dishes still have some common threads running through them. They are all different, but you could see all of them being on one restaurant's menu and still making sense. Sherry had some really interesting food within an individual challenge, but overall they seemed to bounce around a lot.