Van Hagar!

Seriously, Sammy is the man. I have seen him many times including with VH, and his show never disappoints. Diamond Dave was
GREAT, but what else did he ever do? "Just a gigalo" was a groovy tune, but Sammy has Montrose, Chickenfoot, and a stellar solo career with various bands on his resume, and he is still going strong. Hands down, the winner.
Other than that, I dig it all except rap and super twangy country. Favorites are hard rock and some metal. Megadeth in the earlier years was unbelievable. Scorpions was my first concert, have seen them many times since. Alice Cooper, Pink Floyd, Fleetwood Mac, Genesis with both Phil Collins and Peter Gabriel were always good and put on a good show. I also thought that link that Oscar posted to the lady that covered "voodoo child" was fantastic, spent a couple hours looking at her vids. If there is a beat to it, and the artist is talented, I can probably get into it.