I'm mainly a PvE player and prioritize mobility. It just makes the gameplay more fun IMO. I can't stand when my Warlock feels too slow and heavy. I like to go in close combat with a fusion rifle or shotgun, to jump and float around the enemies, and to be able to go in quick and leave quick. 2nd and 3rd highest priority to me have discipline and intellect.
For PvP I might put discipline and/or intellect higher on the priority list.
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Depends on the build really.