Fix paladin. Only Class in the entire game that cannot...

[Reynhart]

I will break it down even more clearly...

Ok, so let me break it down to you.
PLD with Shield Oath can easily keep enmity over any DPS and any other tank without their tank stance with Flash. If they use their tank stance without being hit, then they're just stupid.

So, instead of calculating over and over how much enmity can each tank build, why don't you focus on the real issue, which is PLD cannot kill groups of mob as fast as DRK and WAR ?
You know, this thing about damage, and not enmity...

Flash will be straight 600 "points" of enmity over and over.

You're still wrong...Flash is not 600 enmity. It's 600 potency, meaning it would build the same enmity as a 600 potency non-crit attack.
It it were 600 flat enmity, you realize that you wouldn't be able to keep enmity over BLM in AoE situation (Who can easily do more than 1200 damage, thus enmity, per GCD), right ?