I voted for Whispering Canyon, however, it depends on if you have children and if you will be attending any other character meals. We just got back yesterday and did Chef Mickey's for breakfast and Whispering Canyon for one of our dinners. Both were excellent! Whispering Canyon's food was very good (got the Skillet), but the real reason is the entertainment...the waiters had the kids as well as adults involved in ridiculous dances, singing, and other assorted forms of fun.
Chef Mickey's for breakfast was fun, simply because of my DD's reaction to the characters...they are great, good interaction and a lot of fun.....the food was average though...not bad but not gourmet by any means
Hope this helps