Which Tank is the most mechanically challenging?

[NegativeS]

WAR is fairly simple compared to PLD and GNB but still have to manage his gauge, his storm eye buff and his infuriate time reduction, DRK on the other hand is just throw all his oGCD and MP under raid buffs and spend 45s doing nothing but his soul eater combo, his difficulty rely on how good is your connection to make all those double weaves after his absurd downtime so is basically a brain dead job.

If you want to play the most complex tanks you are already playing them.

Understandable, I guess that's what drew me to them in the first place