Most hated faction of all times in epw was obviously Ruthless. It really has EVERYONE outside against it. Almost no players online nowadays old enough to remember that times I guess.
There was a point also when Outcasts was almost as much trashtalked as Ruthless was always, just before Outcast disbanded last time.
And Xpendable or early Artifex hated? Since when lol xd Everyone wanted to be there back then.