Holy trinity.. Or maybe not.

[Immut]

So I'm assuming you mean you want fights that force people to do it that way instead of it being a possible option? So like in the Garuda Ex example have a debuff on the tanks if they are tanking garuda and one of the sisters at the same time. Thereby forcing the DPS to tank one. Would that be what you mean?

No, not at all. If anything I want more fights like the above. But that leads to the flipside of the problem in that all of those fights can be single tanked, and if it's possible to do, then it's the most desired strategy since bringing a second tank accomplishes nothing but lowering your party's damage output

What I want is for there not to be such an incredibly sharp divide between things that a melee dps can tank, and things that they can not. Look at the adds in SVHM's first boss. They do 1900 damage to my monk on an autoattack. The one time I tried to attack them without the tank hitting them first, I was instantly slaughtered. Anything a dps is intended to be able to kill without a tank has exceedingly low HP and does next to no damage. The game is simply too categorical in that regard. Right now tanks have something like 15-20 times more survivability than a dps when it needs to be closer to 3-4.

To put it in even simpler terms, I want the relative strengths of the classes to be about the same in endgame as they were in the early game. Early dungeons like tam tara and satasha, all the way up to brayflox, have a good ratio going. The DPS still does the most DPS, but they can handle a trash mob or two while the tank can handle about 6 with a good healer, and can even tan the bosses for as long as their cooldowns hold out. The tank does almost as much damage, about 80-90%, as the dps when not in their tank stance. Later this drops to as low as 40%, which is where their current undesirable status comes from. I think 75% would be a good number. So if your average dps does, what, 400 dps in turn 8, your offtank, assuming they geared themselves like a DPS, would be doing 300 or even 350 should you choose to bring one instead of the roughly 250 they do now.

Basically, they need to put more of an emphasis on abilities than on stats. Of course this also brings into the spotlight the unbelievably short sighted stat distribution on gear. The rabbit hole just keeps going deeper.

The worst part about it is that tanks are by far the most customizable and varied role. If they existed in a vacuum they'd be great to play. You can be a STR tank or a VIT tank. Rate shields or strength shields. Ever heard of a VIT dragoon? Me either.