I personally think that GKMC has more replay value, TPAB is more of an artistic experience I need to sit down and experience all at once, while GKMC can be listened to more casually
kids nowadays would prefer GKMC over TPAB cuz it's got more "radio" songs yet still has a structural debt (still didn't win the grammy btw), TPAB is just one of a kind, once in a lifetime type shit, right up there with Illmatic which is prolly the goat album