Couple thoughts from reading this thread...
- Ya'll need to learn the difference between a classic and a masterpiece. A masterpiece's only criteria is that it is a masterful piece of work that puts on a rare level of quality compared to its contemporaries. A classic is an album that has stood the test of time and made a major impact on the history of the media of which it stems from. Ain't no such thing as an "instant classic".
- Lupe Fiasco's 5th album, Tetsuo & Youth, is an obvious masterpiece. However, it's not a classic because 1) It's only 2 years old and 2) It didn't sell very well and therefore didn't have a huge impact on the genre as a whole. Therefore it does not qualify as being a classic. The Cool is 10 years old, sold really well, made a significant impact, and was a masterful piece of art, so that album has more of a case for being a classic hip hop album.
- Illmatic is both a classic and a masterpiece. It's not only stood the test of time being 20+ years old, but it's incredible quality also makes it an easy call as a masterpiece. Other obvious albums that are both classics and masterpieces include Aquemini, Reasonable Doubt, Ready to Die, 36 Chambers, etc.
- To Pimp a Butterfly is a clear masterpiece, and should have no problem being a classic as it ages.
As for Kendrick's discography, I honestly think Section 80 is better than GKMC.
S80 had ADHD, Ronald Reagan Era, Poe Man's Dream, Keisha's Song, Rigamortus, Kush & Corinthians, Ab-Soul's Outro and HiiiPower. Those are among KDot's very best material.
GMKC is great, but it can't hold up to that imo. It just had the machine and media hype behind it more. It has arguably his best record in Sing For Me which is otherworldly beautiful. It also has mAAd city which is hip hop at it's absolute pinnacle. It also has a personal favorite of mine in Real and the fantastic Compton. Money Trees features a heck of a verse from Jay Rock, but as an overall body of work, song for song, S80 is just better to me.
TPAB is his best project and one of the best albums I've heard, and to call an album that isn't even 1 week old a classic stupid, so we're not even going to go there, but DAMN. is definitely a great album and could arguably end up being his second best album when the dust settles.
Nas has 4 undeniables in Illmatic (arguably the best rap album EVER, which gives him bonus points), It Was Written (the album some say is better than the best rap album ever), Stillmatic, and Lost Tapes. Life is Good was also great and underappreciated. Nas has put in the time and has a large body of work that consists of classic material, a couple duds, and albums that - while not perfect - are still damn good.
I think Kendrick is one of the greats in the game, but threads like this are why people will inevitably detest him. No he does not have more classics than Nas. Nor is he a better rapper. The nikka is not even 30 years old yet. Relax.