Apart from the obvious, I am also a huge fan of Star Wars, Mass Effect, and pretty much any other good sci-fi franchise.
I'm very much into vintage music, styles, and technology from the 20th century. Basically anything between the late 30s and early 70s has my name on it, though the 50s I find especially fascinating.
Well, Red Eye is one that makes sense. He's trying to rebuild Equestria, and he sees slave labor as a short term means to an end. I can completely understand that.
Then you have those scummy raiders, or the Goddess, or Autumn Leaf. Those guys are utter bastards.
If I may confess, I haven't finished a single side story yet. I'm in the early chapters of Pink Eyes and Project Horizons, but am making very slow progress.