Now, as far as people I refuse to group with are:
Wizgoddess - because I honestly feel like he's the
stalker type (always wants to know my personal business). And YES, it's a guy..

Helixo - His life revolves around this game and god forbid if you joked with him he'll fucking ragequit on you at the very end of a quest before completing.
Sunstone - Because he has a huge dick up his ass and thinks he's Gods gift to DDO

Kumilana - Shit-tastic nub, can't lead a easy raid, tells a barbarian if he tanks he can't rage.
Crazydamage - For obvious reasons - which I've stated in an entirely different post on the vault.
And I'm sure there are others on my shit-list, but
quite honestly I'm too lazy to write all of them

way more than just 5! Hah!