You know, the basic bar band stuff: Allman Bros., Bad Company, Seeger, The Boss, etc. Some good country and Eagles, Poco. I love stuff with a lot of harmony. We always played a lot of Fleetwood Mac. Throw in some SRV, Buddy Guy, and some '80's hair metal, I've about played it all.
I wish I could sing like Steve Perry, but I have to pick stuff that a normal human being can actually sing!