Oh Eminem...Where do I even start?

Don't, you would never come to an end. :|

I think it will be hard to find any rapper that is a feminist hero. I only know Eminem songs from his early career, but I remember him being quite unfriendly about woman and using a lot of words like bitch, whore etc.

Please make one of these about Joss Whedon, so I can rant how much I love him and how cool he is!

^ Your wish is my command, fellow Buffy fan!

Yeah, I think we all know the answer to this one.

Is it wrong that I still like his non-homophobic, non-sexist songs, how many few of those they're may be?

^ Not at all.
I quite liked "beautiful" myself.

I liked his song "Mockingbird".

Of non-homophobic rappers- how about Queen Latifah, Lady Sovereign, or Q-Tip (from A Tribe Called Quest)?

he talks about tying a girl to her bed and setting the house on fire

Kim. That's all.