Psi Battle: Moondragon vs. Professor X!
Charles Xavier: Billed constantly as "Earth's most powerful telepath" for over 30 years, the mutant Professor X is a natural telepathic genius.
Top Feat: After spending months preparing in medative seclusion Xavier tapped the power of humanity's collective thoughts to repel an invasion by the alien Z'noxx.
Heather Douglas: Taken from Earth as a small child by the Eternals of Titan after Thanos slew her parents, Moondragon was schooled in the psychic and martial arts by an offshoot of the Priests of Pama, a Kree mystical sect with a history going back thousands of years. She was "first runner up" to be the Celestial Madonna (she lacked Mantis's humility).
Top Feat: Using her telpathic mind control to halt an ethnic/civil war that had engulfed the planet Ba-Banis for generations. Then, when he opposed her ruling Ba-Banis as their goddess, she slew the "immortal" Drax the Destroyer (who had for years played Tick-Tock Croc to Thanos's Captain Hook) with a psi-bolt.
No Cerebro etc. for the Prof. No Mind Gem for Moonie.
Lets get it on!