Do you have a preference of characters? The "100 Acre Wood" gang (Pooh and friends) has never really done a lot for me, so we've yet to eat at CP. We had breakfast at CM for my husband's b-day, and had a ball! I love all the classic characters, and they came around a lot. Plus, we really enjoyed the food - we went for a late breakfast, and were stuffed until dinner that night!
BTW - if you go on an early morning tour at the MK (or breakfast at CRT), you also get the advantage of getting in the park before everyone else. (Of course, don't follow their advice to leave your camera in your room - which we did, and missed those pics in front of the castle with NO ONE else in them!)