When my daughter started dance they required either Bloch or Capezio shoes.  We initially bought some Capezio shoes from a brick and mortar store.  They were a bit roomy and while the shop owner assured me it would be fine, I decided to shelve the Capezios for a while and try to find a smaller size shoe after my daughter tried the Capezios several times and seemed to dislike wearing them.

I prefer these Blochs to the Capezio.  The construction feels stronger and the fit feels more molded.  The top part of the shoe is comparable between the two but the area around the sides of the foot has more give to it on the Blochs without feeling flimsy.  The leather sole on the bottom is shorter and more narrow on the Bloch shoes.  My daughter seems to prefer this as I think it gives her foot more flexibility.  The fabric on the inside of the shoe is softer on the Blochs which makes for a more comfortable fit.  Both shoes have elastic ties.  The Capezios are significantly longer, and the elastic is more 'slippery.'  Several people recommended to me that I put a double knot and cut off the extra because tying them would never stay, and I found this to be true.  On the Blochs I was able to double knot it which has been working great.

Overall, I think both brands are good, but my preference is for Bloch.  We'll definitely be purchasing more Bloch shoes in the future.