This man even did a joint for the Iraq War 

My nikka usher a better singer than r Kelly.
Joe is a better singer than r Kelly
Brian McKnight is a better singer than r Kelly.
Several other singers that are better, but you get the point.
R Kelly is a great singer, but I wouldn't call him the goat.
I can't deny it. I don't know anyone who can belt out songs like that for fukking 2 hours. Its insanity
And he doesn't even touch the album cuts
In terms of skill I rank Kelly above Micheal
In terms of overall I put Kelly next to Micheal
Usher is not a better singer in any fashion. His voice doesn't have the power and range of R. Kelly. He lacks versatility vocally
Joe has a better VOICE overall in terms of tone. It's smoother than R. Kelly's voice. But to say he's a better SINGER is a stretch.
This shyt makes him one of the GOATs:
the amount of classics this man has
U just can't deny R.Kelly's talent...u just can't
Let's also add to this that R. Kelly singlehandedly revived the careers of Ronald & ernie Isley, as well as charlie Wilson.
Gave Ron a 20 yr career extension and Charlie Wilson is working on 10 yrs.