Adding another one to the list..

Bards...
Another class I tend to sympathize with. They are really squishy and blend into the background. I really never see a Bard standing out. Even as support they are very Meh. (At least from what I have seen thus far)

What tends to irritate me about Bards is many seem to never be aware of their surroundings. When a Boss throws an AOE at them, many just stand there like a deer in the headlights. The past 3 Bards I have fought with were always the first to go because they were not paying attention. Just kind of off in their own world. This does not make them cocky. But it is annoying as hell.