Aerosmith, Black Crows, Molly Hatchet top the charts, but I love anything loud and hard too. Stuff like Metallica before the Black Album, Iron Maiden, Megadeath, ect.
Now if you really want to get down to great music I love, I find that Rainbow with Ronnie James Dio, Black Sabbath with Ozzie of course, and even stuff like Cream, and Led Zeplin are timeless and will aways be kick ass. What it comes down to is I'll listen to anything from the Beatles to the Ramones. Easier to say what I dont like. You know what you get when you mix the two types of music I hate the most (Country and Rap)? You get crap. If it's bubble gum, or sang by some guy named Justin Timberfag or fits into country or rap, get it the fuck away from me.