Sue would have to take Jean out in oue hit, imo. Once, Jean gets a visual beat on, Sue it's over. Jean may not have the, Phoenix power here but I don't see why she needs it, assuming she knows where, Sue is. At the very least, Jean could compel, Sue into fighting hallucinations while she stabs her in the back. I don't see, Jean having any problem in knocking Sue out or even killing her with telepathy.
Jeans telekinetic powers should also be more than enough to stave off or deflect Sues force field blasts. However, if Jean doesn't know where Sue is then Sue would be able to knock Jean out or kill her with a powerful enough blast.
To me this all comes down to whether or not Jean knows where Sue is or if her telepathy will allow her to sense her in time.