Well my P.C. choice is my hinderer xm 18 It hasnt left my pocket since I got it and that says something, But you said favorite and that has to be the well worn "western castrator" that I inherited from my grandfather. The storys that knife could tell..and it allways makes me think of the old saying "now we are getting down to nut cutting"
I'd sure like to have one of those Strider tanto things like Kruiser has. Beastly little monster. But really, it's hard to pick a favorite or a dream knife... I could probably give you a list though.