we had a 10:10 ps for crt and did not get in 'til almost 10:30 and did not feel "rushed" at all... they were still seating people after us... and i don't think they felt rushed either... it was nice as the restaurant got a bit emptier, the princesses had more time to spend and chat up the kids... we enjoyed the personalized visits alot!
if i had a choice (and i did! LOL!) i would take the latest ps possible... especially if you are doing early entry... you can get half the park done in the hours before breakfast (which will feel more like brunch) and then w/your full bellies do some of the more relaxing stuff as the lines build for the more popular rides/attractions (which you will have already done!) also, be sure to grab a fastpass to something (mickey's philharmagic is a great post-meal show) just before you go to crt, so you have that to look forward to when the meal is over...
also, by doing the later breakfast, you can probably skip lunch like we did (we had ice cream in the afternoon, when we were finally feeling hungry) and save a few $s!
whatever you decide, ENJOY!