Not sure about single lines or a verse but it is hard to deny that Lose Yourself is arguably one of the best songs for favorite lines. Everyone knows that song, so many start to rap along even if they do not like rap.
"His palms are sweaty, knees weak, arms are heavy
There's vomit on his sweater already: mom's spaghetti
He's nervous, but on the surface he looks calm and ready
To drop bombs, but he keeps on forgetting
What he wrote down"...and so on I'm sure you can finish it.