Partially agree with your analysis, but for me, the worst are definitely grads. Most of them really are boring geeks, as you said, and those few that are not are extremely annoying with their fake confidence which is based on....hm, well, wait.......I know, well, give me a sec., well, one big nothing I guess. Unless they are totally attractive, but that's very rare these days. Seriously, haven't you noticed that grads are becoming less and less attractive?!?