I think he's very talented but wildly overrated. Partly because I don't like his voice (that's 100% a personal thing, not a criticism), and partly because it feels like his music is just made intentionally to sound "important". Section.80 was a great mixtape but GKMC was starting to drift into self-importance, and TPAB went way over. I listened through it a few times trying really hard to get into it, and while I agree it's a very, VERY well made album, I feel like things are done because they "sound grandiose" rather than being an honest expression. Like Kendrick, Dre, and the rest of the team who worked on the album all sat at a table and asked themselves what to do for the express purpose of making a "classic". It's all so forced.
For my money, Tetsuo & Youth deserves AOTY over TPAB by a longshot. Hell, Mural all by itself solidifies that album as a classic. I've gone through that track more times than could possibly be healthy.