From what I know the XP is more towards the competition side with line speed. Both good winches. I'd compare things like line speed, weight, price and go from there.
The XD has the housing over the spool so make sure you don't want to do a hidden mount.
I have a 9500TI and I love it. Its never let me down yet.
Wherever you find it the cheapest, call PORC and he'll beat it...at least he used to.