Not sure about most hated. I like most of the enemies you mentioned because of the reasons you mentioned. The enemies I hate are the cabal in general, because they are so boring and shit. Its like they gave up with the cabal. And the phalanxes are the worst. So lazy. Like the dudes with shields in GoW, like the guys with shields in Borderlands 2. Lame and unoriginal. You could say the same about some of the Hive or Vex, but, I like them. They have more character.