A point that Nickelus F (who's allegedly written for Drake in the past) made yesterday was "If we gonna point the finger at Drake for having help we can't turn a blind eye to Yeezy... And Yeezy is in my top list of rappers." There's truth to what he's saying too. Although Drake may trump him in of-the-moment popularity, Kanye's more frequently cited as the best artist of a generation, or a revolutionary, or one of the all-time greats, and he's definitely had others write for him.
From My Beautiful Dark Twisted Fantasy onward, this has been made abundantly clear in his album credits-- Yeezus alone lists rappers, singers and poets like Malik Yusef, Rhymefest, Cyhi The Prynce, Lupe Fiasco, Sakiya Sandifer, Fonzworth Bentley, Anand Bakshi, Jill Scott, Pusha T, Ab-Liva and John Legend as writers on various tracks. But even "Jesus Walks," Kanye's breakout single, was partially written by Rhymefest, and people have long alleged that Consequnce wrote a bunch of early 'Ye lyrics.
Funnily enough, Kanye got some of his first production jobs as a ghost producer for The Hitmen's D-Dot. What goes around...