Run DMC was good.. until they got with Aerosmith.
I don't put DMC in the Rap genre either. They were more hiphop to me. There is a very (and I mean it) VERY large difference between Rap and Hip Hop.
anyone who disagrees should watch the documentary Scratch.
here it is if you're interested
now as far as nickleback goes.. if someone likes them, then fine. People shouldn't have to apologize for liking what they like. Just ask yourself, do you like them because it's force fed to you.. or do you like them because it speaks to you. If it's the former, then perhaps you need a new musical direction. If it's the latter, then fuck the haterz.