I've been looking into some new job set-ups when the next level cap gets raised...in particular 90+WAR/MNK compared to a 90+WAR/DNC.
Now, with WAR/MNK at lvl 90 you'd get counterstance. Considering they don't gimp it as a subjob, you're looking at about a 50% counter rate but you're also looking at a dramatic decrease in def. So you bust out a PDT GAXE from ToM (or maybe a PDT axe and shield) to counter that (to an extent), use Defender, and retaliation (for the chance to counter when you actually do get hit), and then more PDT gear here and there...perhaps a Nocturnus Helm for the Occasionally absorbs physical dmg. Would definitely need some outside healing for this, but the chance to not take dmg for 50% of hits is pretty legit.
And then on to WAR/DNC...you get Haste Samba, Drain Samba II, Dual Wield, and self curing. The same PDT build as WAR/MNK. You'd take more hits as WAR/DNC but you'd also get self curing to keep your HPs up. In this situation you could use a PDT Gaxe, a PDT axe and shield, or dual wield two PDT axes (-8% each axe).
Curious on your thoughts. Of course this is in no way stating that WAR is comin' back to tank down the big mobs in EGLS, just more geared towards low-man/solo style tankage on mobs that aren't extremely over-powered.