So, the new Bioshock got me wondering if Elizabeth could be the best companion in gaming. While I have to say she's really good, she's actually not my favorite. To me, the best companion in a video game is Agro, your horse in Shadow of the Colossus. Man, that horse was so devoted to you it literally stayed beside you while you fought these monsters the size of skyscrapers. And the animations and programming that made Agro seem real are still impressive today. Who can forget this moment in the game?
As far as bad companions, Fi from Skyward Sword has to be at the top of my list. I actually blame that character as the reason I never finished the game.
So what are your best and worst companions in a video game?