That is my entire point. How many people do you know that have assault with a deadly weapon on their rap sheet? If the answer is anything above zero, what kind of people are they? I'm willing to bet they aren't exactly the most upstanding members of society.
Sure, other musicians have problems with the law. Take Scott Weiland for example. He keeps having, umm, lets see, DRUG offenses because he can't stay clean. It's an addiction. BUT, he's not going out doing VIOLENT crimes. Which Eminem HAS, and he ADVOCATES through his music. JUST LIKE the Gangsta rappers from the early 90's. That movement was rather popular at the time, and now it's dead. But only after some of the big players found themselves murdered for it. Does that make sense to you? The only rapper that survived the musical transition was Snoop, and that's because he changed his sound entirely.
So where does Eminem fit into all of this? He might not be gangsta, but he tries to act tough. Why? Because growing up, he got the shit knocked out of him on a daily basis by EVERYONE. Now that he thinks he's all tough, and has some people to back him in a fight (D12), no one else cares about that stupid high school shit anymore. So he picks fights with other rappers. That's how the "assault with a deadly weapon" thing came to be. He threatened another rap group with a gun outside a nightclub.
What a douche