As someone who got i104 mnk and i102 drg and pretty much mastering both jobs, I can understand you completely.
I started playing this game only because I saw a picture of the AF drgoon, reminds me of Kain I guess, and I'm drg almost a year already, I love this job so much.
but a few months ago I started playing as mnk, and guess what, after two days of mastering the rotation, I managed to get higher dps in pretty much every fight.
now that's a kick below the belt right? so I tested the situation in different aspects, I got one brd in my group (two if we're solo tanking), which makes the drg much much better than mnk, it gives 10% dps bonus to the bards, and in terms of teamwork, it's really good.

yes the rotation is kinda messed up, once you missed the HT by mistake, you suffer an huge dps loss, and let's not talk about clipping.
and yeah as mnk theres a lot of times wen I'm executing the rotations with a lot of misses and fails, but still managed to top dps.

continue..