difference between classes post BB.

so from what I've seen since BB is that any class can be a very effective damage dealer so long as they have good equips.

in essence all the classes are the same and only equips matter.

so my question is with equal equips ( value wise ) what class is best for bossing and what class is best for training.

basicly what is the degree of differance between jobs when it comes to dpm/dps w.e

supposing their all given the same amount of mesos to fund them.