While Jonesy seriously is a badass ginger kitty, I don't think I've put enough thought into the matter.
Luckily, Cats on Film has. Lots of thought and effort in a terrific blog. And Jonesy is Cat on Film #100.
TotalFilm, one of my two favorite film magazines (the other is Empire) put out a list of 50 Greatest Movie Cats last year. Though it started promisingly with Blofeld's white Angora from all those Bond movies, next up at #49 was Mike Myers as The Cat in the Hat. Then #48 was Fritz the Cat. And I thought that was lame, but you might get some fun out of the list anyway. BuzzFeed has a short list too. It's okay.
There's an app for folks with iPad and iPhone access in which you guess the movie from some animated cats - MovieCat. Not strictly "cats on film" but it looks too fabulous not to mention. Plus, the cats are done by Brian Kirk and I personally think his cat movie posters are genius.