What were they flying? F9F Cougars?
Just kidding, although I think that may have been what they were flying the first time I saw the Blue Angels, although it could have been the F11F Tiger. Pretty sure the Thunderbirds were flying F-100s the first time I saw them, although it could have been F-84F's I suppose.
I think the current aircraft flown by each team are their "coolest" yet, the F/A-18 Hornet and the F-16 Falcon.