Oh goodness, I just have to respond to this thread. My favorites are, in no particular order: Jack, the Voerman sisters, Velvet, Damsel, cabbie (or Caine), Nines, Mercurio, Yukkie, and Beckett. The reason I like these? Various, but both Voerman sisters, in their own way, look good, and are completely sane in a screwed up situation. If you want to know more, you can ask me. Velvet, well, the outfit, the skin color, etc., she looks damned good. Damsel, she's interesting, and actually has something to say, beyond the stuff she spouts. You just have to talk to her. Caine, who doesn't like him? Nines, he teaches you stuff that can be important, and also is a key figure in the story. Jack, he's not just funny, but also a big help. Mercurio is coll because he not only helps you out, but he also gives you some neat boom stick, when you need them, and they can be fun, too. As to Yukkie, who doesn't like a cute girl in a school girl's skirt, and can take on a mutant shark-dude? Beckett, because he's actually telling you more than anyone, aside from Jack, than anyone else in the game, to actually help you out, and to make it through the game.
"People should not be afraid of their governments, the government should be afraid of it's people." V from the movie V for Vendetta