^ Eminem kills the last verse in Airplanes Part II; absolutely brilliant tune. (Goes off to listen to it again xD)
Oh, I need to add Kanye West ft Common & Ma$e - Jesus Walks Remix to the list that I'm obsessed with at the moment. Awesome verses by them all and just generally brilliant.
EDIT: Oh and Twista ft Kanye West - Alright. I forgot how good that songs was =o