In terms of the Usher single, P got to give him that "U Don't Have to Call" 2014 version lol. It would have to be on the same level or better than "Good Kisser". That song is so great! It captured that R&B essence to the core.
we will never really know what it would have been. but from what we heard I dont think it would have been better than Nothing. maybe as good? but idk if it would be better. Nothing gets a lot of flak because it was an N.E.R.D album and it just wasn't up to par with the previous 3 ( which I feel is the case). I really do love Nothing though. Solid album even though it is without a doubt N.E.R.D's weakest