Actually if you take a look at the faction infocards in your rep list you can find out which groups are hated by everyone.
As far as I can remember the outcasts and corsairs infocards say that they're hated by 'house militaries and police' which to me means all of them.
The xenos are hated by all factions except for the zoners and the IMG, though the more things you kill as a xeno the greener you get with all the other pirate groups.
The hackers infocard states 'house militaries and police' too. Though they don't have any ships closer to rheinland then california. They mainly operate in the britonian and kusari borderworlds as well as in colorado and california.
Basically read the infocards (after all, thats why they exist) and use common sense.
