Ah, a subject I love.
I will post a list of my top 10 favorite artists. (Not in a specific order or rank system)
Dream Theater - (probably my favorite, prog rock bronys unite!)
Jordan Rudess - ( if you love piano music you neeeeeeeed to check him out)
Red Hot Chili Peppers - (another contender for my absolute favorite)
Sublime
Anberlin
Mae
2pac
Dr Dre
Eminem
Breaking Benjamin
I do enjoy or at least appreciate most music, and I can't choose a favorite genre