Commander Shepard from Mass Effect, General Armstrong from FMA: Brotherhood, Major Kusanagi from Ghost in the Shell, Batwoman. I like the badass variety of female, haha. If they have military backgrounds, all the better.
When I was a kid, it was Misty. Probably my first fictional character crush. And then Ginny Weasley from the Harry Potter books, particularly around the fifth and sixth books. I also have a thing for redheads :laugh:
I still get crushes on fictional characters from time to time. Imagination is just as real as reality from my point of view.