Normally, I would say the Supercalifragilistic. 1900 PF breakfast has been one of our faves for a long time, but when we were there in December, it was really bad. Many of the nicer food items we normally enjoy were missing, a number of items from the dinner buffet were there and didn't taste fresh (like they were recycled from the evening before), seating was a disorganized mess, characters were ridiculously rushed, the chef couldn't answer my question about something on the allergy menu, and all in all it was a really rushed experience. What normally takes us close to 90 minutes was a 30-40 min meal for everyone with us during the first seating that day.
We also ate at the Bon Voyage breakfast last trip at Trattoria al Forno. We really enjoyed that one and I liked a number of the menu items.
Character meals, in general, are going to be crowded and loud, but I'd say Bon Voyage felt a bit more subdued.