Jean Grey of the AOA is the only telepath. She would have to face the combined psychic might of Professor X, Phoenix, and Emma Frost. She'd lose. It's arguable that AOA Magneto's helmet protects from telepathic attacks since all the telepaths have been hunted down and killed. It would be reasonable to assume that he didn't see the need to create a helmet against telepathy. The regular Magneto created the helmet to protect himself from his once friend, now enemy Professor Charles Xavier.
If Magneto has a telepath proof helmet, then the AOA X-Men still lose. The rest of the AOA X-Men are knocked out by the New X-Men telepaths. That only leaves Magneto vs. the New X-Men. I'm leaning on the New X-Men.
I was kinda wrong Magneto probably be happy to see Professor x. Ok take away the mentors make it a danger room battle and let the leader and the other Xmen fight accept the mentors Prof X and Magneto and You have the teams accept the mentors. Rogue can also absorb telepaths powers. Blink can teleport pin one telepath down rogue touches power absorbed. No Phoenix either only Jean grey.