Kanye-MBDTF/WTT were good and then Yeezus happened
Jay Z-1996-2003 Jay Z is still excellent but since Kingdom Come he hasn't made anything close to as good.
Lil Wayne- C2 was great C3 was good and then he started rapping terribly. Dont understand why people still enjoy him
50 Cent- GRODT is a classic and Massacre was good but Curtis sucked. Only reason Graduation outsold it was because first impression of Curtis was Straight to the Bank/Amusement Park. Ever since that 50 isn't as big and not as good