So ITT nikkas will tell you having quotables is not a factor in being lyrically good.
the coli
Drake is not, bar for bar, better than any of those guys. Go ahead and keep clinging to "hits." This is Hip Hop.
Who has improved lyrically Bar for bar tho? The rap game in general has been way less lyrical and more melody driven. Drake, Cole, Sean and Kendrick came with more bars in their mixtape days. Nowadays nikkas do concept albums, singsongy trap flows or crooning.
Kendrick's bars were better in the section 80 days especially on the features. His features now have been garbage like Sidewalks or Goosebumps
Coles verses were WAY hotter in the FNL days
Wale has lyrically been more or less the same. Been struggling hard with his sound
Sean is the only one who has grown trying to find himself out of his punchline rapper box, his bars were tighter before but now his projects are actually good. but he still drops cheesy bars @ inopportune times like that "picking princess in mario kart" jawn off I decided.
All of them can drop raw verses when they want to they just do it on the throwaways. Heart Part 4, Back to Back, No More Interviews, False Prophets etc