...according to some interpretations, anyway, quite specific:

One third Satanic angels to two thirds holy angels (based on Rev 12 v. 4). So even just by numbers alone (not to mention opposing an omnipotent deity), the former are pretty much fucked: underdogs fighting a battle they are predestined to lose. Which suggests that there is a certain stoical courage and principle in 'evil'...

So...aren't the bad angels actually the good ones?:-)