haven't tried creatoon
I'll take a look though.
I've tried anime studio, flash, and toon boom
and also, the puppet feature in after effects
I like the look of cutout animation, especially when it's elaborate, like the outtro to Lemony Snicket's a Series of Unfortunate Events, or the cartoon network show El Tigre(though I'm not a fan of the show itself)
but for my own style I prefer if the puppet can bend (like anime studio, and after effects)
I've used those type of software as a shortcut to drawing thousands of frames, not necessarily to achieve the cutout look
by the way, anime studio is a horrible name for it. no one's ever going to make an anime with that.
also, for some reason discussing procedural animation, and you bringing up putting puppets on a site made me remember this, thought you (or anyone else reading), might find it cool