I like Eminem 'cause he holds the ability to rhyme constantly... even rhymes I've never heard or even thought about. And if it doesn't rhyme, he makes it sound like it rhymes and it doesn't sound stupid.
He's also somewhat of a rebel (which gives him more "points" for being more conscience than other rappers.) In "White America" he said nothing but the truth. Also, remember that verse that goes, "You laugh 'til your ass gets drafted, while you're at band camp thinkin' the crap can't happen... all this terror America demands action, next thing you know you've got Uncle Sam's ass askin', to join the Army or what you'll do for their Navy. You just a baby, gettin' recruited at eighteen. You're on a plane now, eatin' their food and their baked beans. I'm twenty-eight, they gon' take you before they take me. Crazy insane or insane crazy?" He has balls saying some of the shit he says.