Team two, easily. Especially if we use classic Psimon. Hector is way beyond Emma or Xavier, at this point.
Per Galan:
psimon can:-disperse his opponents at the atomic level, as well as survive from being dispersed at the atomic level.
-is capable of dimensional/temporal BFR's.
-can peel the skin away from an opponent's bones, and literally boil the blood in their body.
-he can mind-rape entire fraggin' worlds.
-can possess his opponents [like he did to kyle.]
-is able to create powerful energy constructs.
-his psi-energies are always at their max because they constantly replenish themselves.
-etc, etc.i'm not overly familiar with professor x, but i can't see him doing well...
Psimon was pretty nasty.