both areincredibly talented groups of pilots. 
 the Angels tend to fly a bit of a "smoother", due i think mostly to the fact that they fly so tight. i think i would liken it to a ballet.
 the Tbirds fly a more "rock n roll" type of show. they don't fly as tight as the angels, and i think this allows them to break it up more. 
 i've seen both perform at Mcguire AFB. 
 i like the Tbirds show better, but i am glad to be able to see either of them fly.