I own both, and IMO it depends greatly on what sort of projects you want to do. Fusion 360 is a full parametric 3D modeler. Vcarve Pro is mostly a 2.5D modeler and Aspire adds more 3D modeling but not to the level of Fusion 360. All have decent 2.5D machining capability, but Fusion offers more toolpath options. None of them have true 4th rotary axis capability, but have wrapped/indexed 4th axis support. One other thing to consider is that a 1 yr Fusion subscription is about 1/2 of the Vcarve Pro perpetual license, and less than 1/6 of Aspire. Also, Fusion can import step files, Vectric cannot.
I have found Aspire very easy to use for wood or board sheet type projects (signs, plaques, boxes, carvings for other projects, furniture pieces, etc.) I've found Fusion 360 better for designing full 3D models for both machining and 3D printing. If you already have a 3D CAD program that will output both step and stl files, you may want to consider DeskProto. It can do 2.5 and 3D machining similar to Aspire, plus supports full 4th axis including rotary, and 5th axis. It has a Centroid PP, support is excellent, and offers a hobbyist perpetual license for about the same as a year of Fusion 360, but has no CAD capability, only CAM.