Classic Battle Royale

Gwen Tennyson (Ben 10) That's not the case. Dagon himself admit that Gwen most powerful being also current Gwen is more powerful than UAF version

Sunny Tennyson (Ben 10) The problem with Dagon is people think he is omniscient or even nigh, yet he isn’t as that was obvious with how the battles went against him. Matt Wayne, the writer of the episode in which Dagon stated this, said himself he doesn’t think Gwen is the most powerful being, yet Anodites as a whole depending on how much Mana is available to absorb, can be quite powerful. With all that being said, Dagon said “On Earth” Sunny was born a full anodite making her inherently more powerful than Gwen, who is only 1/4 Anodite, therefore Sunny has a more sheer energy output and destructive power (mainly cause she’s so impulsive and reckless). Logistically, Sunny should win. It is hard to be 100% since we haven’t seen Sunny and Verdona, or any other full Anodite, in Omniverse so we don’t know how strong they would be, for all we know they are more powerful than they were in AF.