A: Well for one, Katalist is out, LTX Studio is not, so hard to say. We haven't tested LTX, so we can't speak about how good their features are in practice. I believe Katalist has a stronger editor (with character control and generative fill) and a generally a better UX. They may be ahead on video and sound but that's a gap we're gonna be closing soon. Another open question is their pricing, which we don't know much about but I doubt it can compete with this sweet AppSumo LTD. And don't forget about the licensing: everything you produce in Katalist is yours.