Gandalf Vs. The Witch King

Originally Posted by The 1,000 Reader

Also, wasn't the comment of Gandalf being greater than the Nine said by Aragorn before the Witch-King's "power boost" as well? I vaguely recall Gandalf saying something like that to Frodo in Bag End in FOTR as well, though I am not sure.

Don't you think this is in effect Tolkein speaking his own mind out loud? Or is Aragorn really talking rubbish? I am still not convinced the enhanced Witch King is more powerful than the old one with his 8 servants put together. Sauron barely has any of his former power, so where has this sudden enormous hike in power into the Witch King come from? The Witch King is also more or less unproven in battle.

Gandalf vs the Witch King should favour Gandalf in the same way as a battle between Gandalf & Sauron would favour Sauron.