They are both built for the same thing, but the Pro is superior in every way/shape/form other than the $$$COST$$$. Power, suspension, frame, aftermarket, etc etc etc... you name it, the Pro is better than the XP 1000.
Sorry, but this is the dumbest question:
Whats better on gravel = PXP
Whats better on trail = PXP
Whats better on sand = PXP
Whats better in mud = PXP
Whats better rock crawler = PXP
Whats more reliable = PXP, the '24 XP1000 is a new refresh remains to be seen long term but the PXP is rock solid!
... but I cant afford a PXP, then why are you even asking?
PLAIN AND SIMPLE - If you are asking the question, then I assume you have the budget, in which case the decision is that easy, Pro, end of story!