i think that by now, sue can project fields as a reflex (as kitty phases as a reflex) but has to concentrate to create special offensive fields, but i don't know enough about the nature of sue's fields and what she can filter. It depends on how teke is used. A telepath should be able to deflect psi-bolts that are tk in nature since they are purely psi-energy, sue may be able to do that. If it is used to hurl in object, that object must be extremely heavy and/or abundant to get past a field as strong as sue's. or telekinetically dismantling sue but at that time jean i dont think jean was powerful enough to do that, and even against Jean before she became PWC, she was still pretty formidible in battle. Still, i think the F4 are more versatile and have the upper hand