First off, just look at the lyrics from Wayne from HYFR.
"Do you love this shit?
Are you high right now?
Do you ever get nervous?
Are you single?
I heard you fucked your girl, is it true?
You getting money? You think them niggas you with is wit’ you?"
Read those lyrics closely. First off you'll see the intense rhyming in there. Rhyming Eminem could've never matched even in his prime. Then you'll also notice how deep those lyrics are. Has Eminem ever had deep lyrics like that? Fuck no.
Then look at a classic song from Eminem, Rain Man. He clearly state "I forgot my name". How could a rapper that some look to as GOAT forget his name? That's just ridiculous. Hell even Wocka Flocka Flame remembers his name. You could now make a case that Wocka is better than Em. That's a discussion for a different day however. But seriously, how could you forget your name?
Lastly look at the cleverness Weezy brings. "I'm shitting on you like 2 girls in one cup." GOAT line. Nuff said. Bring up any line Eminem or fuck it any rapper has ever said better than that then we'll talk. Case rested.