Although I have not worked with all breeds of pigeons before, here are my favorites out of the breeds I have raised:
My personal favorite show breed: Classic Old Frills. Similar to Oriental Frills, but smaller and cobbier looking along with a beak which is long enough to enable the birds to eat easily and feed their own young. Oriental Frills have extremely short beaks and 90% of the time require fosters. Plus Classic Old Frills are insanely cute! 

For a performance Show Breed, the Parlor Tumblers are easy to handle and make wonderful pets. Steve at Pegasus Loft has some wonderful Tumblers (and other show breeds of excellent quality).
For an aerial performer, Birmingham Rollers take the cake. Homing pigeons are also fun to work with, fast in evading hawks, and very intelligent birds overall, but the Rollers have much more personality and in some cases much more friendly and curious birds. It is very entertaining to see a kit of talented spinners take to the sky and perform what would seem impossible for a pigeon.
