I did them all last week.
Foodwise, my favorite was Crystal Palace. There were 4 characters, all from Winnie the Pooh Series..nothing really special except the food was really good.
My least favorite, foodwise, was Tusker House. It was seriously gross. Im shocked at the comments above, but everyone has different tastebuds!! The juice was nothing special to me as I usually buy the mixed juices at home anyway. (This one was Minute Maid orange/mango/passion). As for characters, Tusker was one of my favorites. Classic Disney and the only place we saw Daisy! They were all in their safari gear and spent a good amount of time at the table hugging/pictures/autographs etc.. It was really fantastic and I would do it again despite the food (breakfast).
OHanas had a little above average food. Mickey waffles are one of my favorites, so I was happy there! They had Mickey, Lilo and Stitch. The place is so large that if you dont time being seated properly, you may have to wait up to 2 hours to see a character. We were there close to 1 1/2 hours and still many many tables away from being greeted by Lilo. We left without seeing her. Interaction was also quick here and the staff was so busy, we waited quite a while for more coffee, the bill etc.. Im sure on a slower day it would have been a lot better. We had a great experience the night before for dinner at OHanas, but no characters are at dinner.
We stayed at the Contemp. We were woken each morning at 7:00am by the "Celebrate Mickey Mouse" song, which was done every 40 minutes or so. The song still rings through my head a week later!! By the time we had breakfast there, the song and napkin swing were nothing special to us. We heard/saw it a thousand times during the week as our room was RIGHT ABOVE the restaurant. Good food, classic characters Mickey, Minnie, Goofy and Donald. Interaction very fast as the place was packed. Atmosphere was like a cafeteria...nothing special.
1900 PF was super crowded. We waited 1/2 hour for an omelete. Good food with Mary Poopins, Alice in Wonderland, Mad Hatter, Winnie the Pooh and Tigger. This is the only place we saw Alice and Mary, so it was good to be there.
Bottom line...if I could bring the Crystal Palace food to Tusker House we would have the winner of best breakfast!!