Bernkastel
Reaper of Miracles
My first pick is Kain from Legacy Of Kain:
* If Super Sailor Moon can travel at lightspeed, Kain has showcased the ability to teleport. Should an opponent be physically or mentally vulnerable enough, he is capable of telekinetically move them or even drain their blood from distance.
* If Super Sailor Moon is a planet-buster, a common point about Kain was that only the Soul Reaver could end him. Not even taking his/Janos Audron's heart out did the job and being out of his time period makes him a walking paradox.
* Super Sailor Moon has a long list of magic attacks. Kain has them too and are proven to be deadly. Electrocution a la Emperor Palpatine and such.
Second choice would be Apocalymon.
* He's massive but at the first sight of self-doubt, he simply deleted the Digi-Destined. Sailor Moon may be magical and powerful, but she's no tech expert and that's what matters in the digital world. Not to mention she has her teen-ness making her emotions easy for Mr. "Hot and Cold Running Water" to notice. And I doubt her magic is a substitute for Crest Power, which is what allowed the kids to come back from being pretty much dead.
Last choice.... Mewtwo.
* There's a few Pokemon with his brick-like psychic defenses, but I'm picking the cool one. He's no planet-buster, but he's high on defense via barriers and light screens. And Recovery. He's no speedster either, but since when did Swift ever miss?
No to both Kain and Mewtwo but Apocalymon? That's just overkill. I may ban you from using him again.
What prize do you want?
APOCALYMON IS NO LONGER AVAILABLE