I only just got around to voting here, I guess because my favourite Ghostbuster is missing. Well, actually, all three of them are - but since this is the movies thread, I guess that's ok.
So, anyone who's familiar with my fanfiction could probably guess my vote. It's Peter - and that applies to cartoon and movies both. I was vastly unoriginal as a child. My favourite Ninja Turtle was Raphael and my favourite Ghostbuster was Peter Venkman. Because he was a lot of fun. It's hard for a girl under ten to relate to a Ghostbuster (could have done with Kylie back then, really ), but for me, Peter came pretty close.