I think WISE is the most underrated and under credited Jhop talent there is. Have you ever heard of him Gikoku?
I think RIZE has some good songs too but I think they are more mainstream.
Overrated reg music...
Soujia boy easy, props for producing everything on his album but it sucks.
Hard to name overrated rock musicians since rap is so dominant these days.
A lot of "underground" music from Pitchfork Media. Rooney, Arctic Monkeys etc.
Common, for sure