We have been to a few character meals and our favorite is Ohana's breakfast. Mickey (and I think Pluto?) and Lilo and Stitch were great. Stitch was very funny...in a gross way, but hey, he's Stitch! Another plus for us at Ohana was that they bring the food to the table instead of it being a buffet like many other character meals. (We just are not into buffets at all.)
Another one that we enjoyed was at GF Cafe...not sure they still have this. It was Cinderella, Prince Charming and Suzy and Perla. Again, not a buffet, so that scores points with us!