I'm quite happy with carrara's vertex modeler. (But then I've had almost ten years of ray dream 5's vertex modeler as my only experience.....) The only thing I would like is nurbs, but even that isn't really necessary, since the real-time subdivision is almost the same. I haven't had a need to fillet anything yet, but I can do that with a boolean operation. I can't really think of anything else I'd need.... Modeling is more about trying to figure out how to do what you need with the tools you have, rather than trying to find new tools to do what you want. Would you rather have an impressive collection of models, or an impressive collection of tools?