.... X can't do anything, hes just a telepath in a wheelchair.
Professor X would see Darth Vader coming, and take evasive steps. Of course, Darth Vader could destroy the planet from his Death Star, eliminating all escape routes, unless Professor X has an off-world escape pod.
vader flat out the force is stronger then simplistic human psychokinesis because the force is every where it is the molecules and energy that is all around psychokinesis is produced by differing types of brain wave patterns interacting with quantum laws and other assorted goods of that nature
vader would own X's rolla a$$