The true story is that Accuracy is the only Secondary Stat that actually matters for the purposes of being capable of doing raid content. Anything other than that won't affect your ability to successfully complete content at all, so don't worry about it. Really. Concentrate on Accuracy first and then have your fun picking your favorite secondary stats.

But, to be all serious and stuff, I'll just reiterate that the secondary stats you pick are whatever ones you want to pick. If you...

Want to do a bit more damage: Stack Crit and Det(Det > Crit, since Crit is based on chance and Det isn't).
Want to be a bit more survivable: Stack Parry.
Want to run out of TP: Stack Skill Speed(above 390 for WAR)

Just remember, the word "bit" is 100% true. All the secondary stats do is lean you a bit toward a particular direction. If you really want to do more damage as a Tank, look into melding accessories to give you both VIT and STR, as STR is the big daddy stat for making that weapon make bigger numbers. Or, if you're in a dinky little dungeon or something, just put on STR accessories. You won't need that happy HP number for anything but Coil anyway.