Is there a ranking of all DPS?

[Orpheus66]

So I want to play a tank so the first thing I do is research on the tank choices and I see BO is the highest DPS tank and IB comes in second, so I naturally rolled BO. But what is the actual DPS difference between BO and IB?

I'm also told KotBS is the worst DPS tank in the game, again I would like to know by how much
Is the difference between BO and Chosen large enough to play BO if I want to 2h DPS (I really really love how Chosen look)?

[Ototo]

So I want to play a tank so the first thing I do is research on the tank choices and I see BO is the highest DPS tank and IB comes in second, so I naturally rolled BO. But what is the actual DPS difference between BO and IB?

SM/BG goes 2nd, IMO, but IB very close 3rd. The actual DPS difference is a lot of synergies of debuffs, and the stupidly overpowered skill You Wot!?!!!, which combined give a class that doesn't really need a shield to tank, nor even a 2h to deal damage.

I'm also told KotBS is the worst DPS tank in the game, again I would like to know by how much

By A LOT. It's beyond any point of salvation. Carrying a wet noodle instead of the sword will make no difference.

Is the difference between BO and Chosen large enough to play BO if I want to 2h DPS (I really really love how Chosen look)?

Yes, it's a very, Very, VERY huge difference. 2h Chosen is a class only worthy in 1vs1 and roaming solo, and simply makes no sense to miss a 50% parry bonus for very little more damage.