Thats a harrrdddddd one man. I've always placed either Gods Son or Streets Disciple in the criminally underrated category. There was a period of time when I felt GS was the album that deserved 5 Mics over Stillmatic as his second official classic. Gods Son has some of the strongest, most intimately personal tracks that Nas has ever spit. Think about Book Of Rhymes, Warrior Song, Revolutionary Warfare, Last Real nikka Alive, Thugz Mansion, Dance and Heaven. Those songs are almost undeniably classic just from the ferocity, the pain, the longing, and the passion that he spits with. Gods Son is truly what can be considered a work from the heart.
Life Is Good is kind of a slicker version of Gods Son. It's what you'd get if you put It Was Written/I Am Escobar lyrical fierceness with Gods Son maturity and wisdom. The personal anecdotes are there, their just wrapped in Nas's superb talent of storytelling. No Introduction, Daughters, Stay, and Queen's Story are VERY personal tracks that make me say "Damn Nas just spit FIRE" more than they make me go

man dude just bared his soul like Dance and Heaven had me. Bye Baby and Roses came the closest to giving that feeling.
Life Is Good is just more a feel good album to me, I can listen to it anytime, anyplace and just feel good about Hip Hop. Gods Son past Made You Look I kind of have to be in a certain mood for which isn't a bad thing it's just not an everyday type of album