Both guys will get booed.
They tainted Roman by pegging him the heir apparent before the fans really chose him.
We can rant and rave about how unfair and mean it is, but no one likes the silver spoon, trustfund kid who gets to where he's at by being hotshotted to the top.
People knew he was winning the Rumble 6 months beforehand.
Once word got out that the McMahon's were adamant about picking him to sit in the throne, he became the equivalent of the teachers pet to fans, and it's unfortunate because the guy has actually made strides.
He puts on good matches consistently and has gotten more comfortable on the mic.
As "the guy," he'll always be met with resistance or indifference because of their blunder, though. Its a different era.
They would have been better off giving him Bryan-esq booking. Fans will sooner rally behind the underdog, whether or not he really is.
Just convince them that he's not in the plans and they'll bite.