Up to you, really. Int PSS has Revitalize, though that takes end building (not ideal) and giving up Expertise and/or DVuln for it. Whereas Str PSS will give less CDR overall, but enhances all the practical aspects of the build (in terms of dps, more defense, grinding mobs faster, etc).
For primary gear, they're all very good sets, but Justice vs. the others have somewhat diff tokens, so it may also depend on the content you want to grind too.
Looking at the stats and set bonuses, Virtuous seems to be better suited to healers and some tanks, Distinguished is more generalist while having a bit more defense and some anti-CC, and Justice is a bit more suited to dps w/ the higher SS set bonus and large Offense set bonus (though Aggressive Stance in Vind can also translate that Offense to Defense as well).