Obviously everyone won't agree with me and everyone is entitled to their own opinion but this is what I consider good Old and New school rap.
Old School-I consider these albums classic, all around amazing albums. I can sit back, listen to all these albums straight through and just bob my head.
Nas-Illmatic, It Was Written
AZ-Doe or Die
Red Man-Whut? Thee Album
Raekwon-Only Built 4 Cuban Linx
Big L- Lifestyles ov da Poor and Dangerou, The Big Picture
Big Pun-Capital Punishment
Notorious-Ready to Die, Life After Death
Wu-Tang-Enter the Wu-Tang
New Shcool-Obviously for the New School it's going to be mostly underground because most music that's playing on the radio is Hip-Pop and auto-tuned bullshit.
Lupe-The Cool, Food & Liquor, All his mixtapes
Probably my favorite New School rapper. Amazing lyricism, doesn't rap about guns, sex and drugs constantly and he can tell a crazy story.
Celph Titled-The Gatalog
One funny ass rapper who can come up with some sick multi syllabic rhymes and has sick punch lines
Atmosphere-There Whole Discography
Slug is a sick MC who can write a good story and has great lyricism and Ant can lay down a solid beat.
That's pretty much all the New School rap I listen too and for Old School that's not my entire list but I'm pretty tired, need to do my homework, I have class at 9:20 tomorrow and frankly I'm too high to focus