I'll begin with my pitch.

Billy the Kid Versus Santa Claus
Billy the Kid sure has gone through many adventures. He fought Dracula, Frankenstein's Monster, Abbott and Costello and the Easter Rabbit! So why not have him duke it out with ol' Santa himself?
Just in time for the holiday season too!
What follows that? I guess Billy the Kid Conquers the Martians, but now I'm getting ahead of myself.