They set themselves appart from the rest of 80's rockers because while they understood that rock n' roll is supposed to be a good time (unlike the teenage-angst "rockers" that pollute the airwaves today), they also had unbelievable amounts of talent. And you can like Guns n' Roses and Nirvana at the same time. The gunners weren't hostile towards Kurt; in fact, Duff and Kurt met on an airplane and were friendly with eachother.
Unfortunately, Axl Rose could behave like a jerk when he got pissed (which was alot). Lets see how you'd be if you were brought up in a fundamentalist home where your stepdad hit you from the age of 2 and kicked you out at age 16. Plus, he's manic-depressive. He still is a great talent and can be a nice guy sometimes. Though his facelift and dreadlocks were a couple of pretty bad choices.
Guns n' Roses never were rascist in their music. People who criticize One In A Million don't have clue what they're talking about. Axl has said that it was ABOUT the rascism and homophobia in America, not in favor of it. Besides, Slash is part black and part Jewish.
Fortunately, Izzy Stradlin and Axl have reconciled their differences, and at least that much of the Appetite for Destruction-era band may be reunited. When Chinese Democracy is released, the world will finaly get some real rock n' roll instead of mall rock.