FoozleCC I don’t really have a recommendation between the two, I have both, but I mainly use/license premade Spine models.
I was originally attracted to Spine’s mesh deform, but Spriter 2 (in beta still?) has that coming too (though not yet in the C3 plug-in?)
I suggest starting a separate thread for this discussion, I would like to keep this thread focused on the Spine plugin. Good luck with your dev work and decision!