Cape May Cafe for The Character Breakfast is great and the food selection is Lovely. We also quite enjoy the more relaxed breakfast at Trails End but there are no characters and the buffet itself is a bit less than Cape May Cafe
Are you using Dining Plan Credits ? Trails End is quite inexpensive so I wouldn't waste Credits on that, just pay out of pocket.
Also would make my choice depending on which Park I was going to after Breakfast, Cape May Cafe on an Epcot or Hollywood Studios Day and Trails End on a Magic Kingdom Day. We like to cut down on transportation time as much as possible