I can't agree with judging a class/job unless you have it at 60, or at least 50.. A lot of these pre-50 judgments are a little harsh.

Some classes were just horrible in their skill progression during leveling. Although I am a little biased as I had everything at 50 upon 2.0 launch.

I will bite, regarding this thread though. DRK & BRD.

DRK - Main reasons is that their kit looked a lot more interesting than it actually turned out. Using a "buff" skill to buff your buffs? Yeah sounds all good on face value but doesn't work out that well.
BRD - I didn't like the fact that BRD used to be able to dance around and do whatever they wanted in 2.xx and still deal damage, on top of that they could do this at range... However WM is clunky and the implementation of it doesn't suit the class's skillset. Having a large core of your damage being based on off-GCD resets on a class that has a sticky casting mechanic feels awkward. On top of that, they have a billion off-GCD buffs they need to pop.. I am by no means against lowering the mobility of 2.xx BRD (perhaps by a reducing movement to walking pace while shooting arrows) or something similar, but the cast bar just doesn't mesh with their abilities too well at all.