For me it would have to be Vincent, seeing as he's my favorite (No duh :P ).
I also feel a little proud of myself for finishing it, seeing as it was my first ever shooter game (I know most of you will probably think its a bad choice and what not), normally any shooting game scares the life out of me but seeing as Vincent was there and I wanted to see more I got braver and was able to carry on.
Yeah. I'm a fangirl.