Silver Surfer takes this.. though it'd take him a while to wear down SBP.
Can SBP breathe indefinitely in space? That right there's a huge weakness of his.. if Norrin can hang onto him long enough with Prime pounding away at him.
If he can breathe indefinitely, I still think Norrin has the physical and energy resources to outlast him, though both individuals absorb energy from their surroundings to retain their stamina/powers (to some degree), right? Does SBP have that necessity, as he's not from "this" universe? I know our Kryptonite doesn't affect him, as it's not his "native" Kryptonite.
Being at work at 3 am gives me the right to ramble.
Ultimately, this would be quite the fight...