Underrated:
Talib Kweli
Mos Def
Common
De La Soul
Rakim (How the greatest MC of all time is underrated is beyond me, but that seems to be the case)
Overrated
Eminem- Excellent MC, but his penchant for putting out sophmoric songs when he doesn't need to really aggravates the shit out of me.
Pac and Biggie- Not doubting their greatness, but just like Ronald Reagan, they have been made out to be more than they are once they died. Pac, if he were still alive, would have left the rap game by now, and made much more of an impact in society through other means, possibly political. Biggie would still be fucking Lil Kim on the side, so both of these guys would be doing what they would want to do.
Method Man- God, he sucks. Worst Member of Wu Tang Clan
50 Cent- Just because you beat Ja Rule on wax doesn't make you great. Give me a week, and I can beat Ja Rule on wax, too
So overrated that they are now underrated:
Jay-Z
Kanye West
The "I am neither overrated nor underrated because everyone knows I suck to begin with" category
Lil Wayne
Ja Rule
everyone else in D12