John. and Arthu, they are underrated. John clinked the entire worlds mind together. When has Jean or Emma do that. Also Arthur has skill. He read MM's mind without him knowing.
Actually it was every hero on the planet I think. I forget.
In a Pure telepathic battle? With no outside powers...meaning John is not allowed to alter his brain shape to screw with the others telepathy...well in that case I don't think John can take all 3...even with the help of Aquaman(Who IMO would be nearish Emma's level)...
Xavier has connected with every mind on the Skrull planet(With no outside help)...and he was on a Skrull moon when he did this...so the range is unbelievable...and he's the only one who has locked away the multiversal astral entity Shadow King...(Yep it's been retconned Psylocke hasn't) http://img166.imageshack.us/my.php?image=05lh7.jpg
No Phoenix Jean...that's Marvel Girl pre-Inferno arc right...that's before she absorbed the Phoenixes, essence, life-force etc into her....I don't see her doing that much...she'll do something though..
Probably just a stalemate....they won't have enough power to overcome the others, but I can't see either team simply getting beaten by a telepathic attack.