I don't really care how Welbeck compares to players of other clubs I'd never want. These rumors are probably Hull testing the waters to gauge if this astronomically unlikely scenario can be put into motion.
But the fact we still have Hernandez, IMO a much inferior player, means the rumors' only argumentation is piss poor, namely, that Welbeck would be getting very limited game time because he's only third in the pecking order (could even be forth, behind Januzaj, and still get a lot of games).
I can't see how a manager like Van Gaal won't love Welbeck and his great work ethic. And, unlike our other strikers, he ain't slow.