I'm dropping a novel here because of this "biased" nonsense. You've been warned.
Eminem doesn't crack my top 100. I don't rank rappers beyond that, and I don't care about commercial success. So he doesn't get in my top anything. Am I biased? I don't think so. I think he's wack. Full stop.
Yes, like any sane listener I thought Marshall Mathers was a good album at the time, and I liked quite a few songs off The Slim Shady LP. He had a lot of credibility back in the early 00s. I admit that. I thought he had a pretty good flow. He knew how to ride the beat and I thought his horrocore stuff was funny for a while.
But he's been shitty way longer than he's been a good rapper. The Eminem Show doesn't age well. His flow isn't completely shot on that album, but the songs aren't very good. Didn't care much for the production and the content doesn't interest me. By the time of Encore, he'd already lost me completely content wise and flow had started its irrevocable decline.
That was in 2004. So his last good album was in 2000, his last listenable album was in 2002. So he's been garbage for 15+ years. Since then, he lost his flow completely from 2004-2010, when he started rapping in those weird accents and out of the pocket, and was talking about the most irrelevant, worthless shit imaginable. He finally kicked the accents and improved his voice slightly, but the content is still gone.
Since around 2010-2011, you can tell he's become really insecure about how he's perceived by the rap community, fearing he's lost his respect from when he fell off with those accents, and he's even referenced this fact in several songs. So he tried to over-correct for it by taking on this new lyrical miracle rappity rap style of over the top, exhausting multisyllabic rhyming about random shit that he continues to sprinkle with dashes of domestic violence. These days he's all about cramming as many words into a bar as possible and barely staying on beat. This is why anytime you see him in a cypher anymore he arrogantly tells DJs to turn off the beat, as if he's about shock the world with his amazing lyricism, but it comes across as very forced and awkward. He's clearly desperate for credibility, but he's got absolutely nothing to say and is just super exhausting.
Back in his rich period ('99-'00), he would take his time with the beat. He'd have a few internal rhymes, but was confident enough in what he was saying he could slow down, carefully select his words by limiting his vocabulary, and would focus mostly on rhyming on the 2nd and 4th beat like a traditional 90s MC. He had nice breath control and could keep time, and had this edgy punk rock "Fuck you" attitude that was refreshing at the time. But again, that was '99-'00, and as I said, means he's been garbage for over 15 years. Think about that. 15+ years of unlistenable, trash music. That's unprecedented. I can't in good conscience put a rapper with that track record in my top anything.
I acknowledge that the first two albums are good, so I don't think I'm being "biased" by saying a rapper who has been pumping out irrelevant, shitty music for 15+ years is wack.