I love Trails End, the food is good and for the money it really is a great deal....but you are trying to compare apples to oranges.
Trails End is a buffet with no characters and Chef Mickeys is a buffet with Mickey Mouse, Minnie Mouse etc.
So if you are just looking for good food at a good price I'd go with Trails End, but if you are looking for a good Character interaction with okay food then Chef Mickeys.