All of Coheed's members played with some pretty good skill, but their stage presence was really weird. Their frontman acted like a five year old on a gallon of sugar. He would just randomly start running around, wriggling his legs as fast as he could while he jumped in the air. It was really bizarre. For some reason, the lead guitarist thought it was appropriate to randomly throw in high pitched screams. It completely didn't fit and it made me pretty embarrassed to be in the audience. Speaking of which, it was very obvious which of the people in the audience were only there for Coheed. They would bob their bodies around and put their hands in the air as if they were at a worship concert. All of them looked like they were completely stoned, which wouldn't have surprised me at all if they were since there was a lot of marjuana use. In general, they just completely embarrassed themselves to my (and my friends') great amusement. However, the fun was cut short when the band took one of Iron Maiden's best songs and completely ruined it.
Heaven and Hell, on the other hand, was a phenomenal performance. Tony Iommi (guitar) played like a god, showcasing incredible talent. Vinny Appice (drums) was pretty great, too. Though he never really played at insane speeds like more modern drummers, his technical prowess was quite a display. He even got his own drum solo spot for a few minutes, which was pretty impressive. Dio (vocals), of course, performed flawlessly. I was incredibly impressed at his ability to perform so powerfully at his age. It was a real spectacle. Geezer Butler (bass) was probably the most under-appreciated member. Though he never got a solo spotlight, I kept my eyes on him a lot. His playing was really amazing, especially his speed and precision. The best part about his performance, though, was the fact that he played the guitar rhythms during Tony's solos. It was really awesome that he could make such a great rhythm section.
The concert was absolutely mind-blowing. For guys in their 60's (save for Vinny, 49), they really kicked ass. It was one hell (no pun intended) of a night.