I wouldn't say one is easier to use or learn than the other at basic operations, Inventor has many many more options for doing things so that might be overwhelming at first but both work on the same principle. You draw a profile and extrude/revolve it until you get your desired shape, in Inventor it's a simple as starting a new part, clicking "Start 2D Sketch", select your plane and then pick line/circle/rectangle, make a closed loop, close sketch and then extrude or revolve. They are both more than capable of doing that and both work the same way. If you know how the concept of creating something from 2D profiles works then you can use any parametric modeling software with just a bit of time learning where things are.
Now I haven't spent much time in Fusion360 beyond just playing with it but with Inventor you are given many more powerful tools to work with models. A lot of the cost and complexity of Inventor is the FEA, Dynamic Analysis, Mold Design, Weldments, BIM Exchange, iParts, iLogic, Bill of Material Management, Cable/Harness/Pipe modeling, Vault interaction. All things that aren't very useful to a hobbyist but are used daily in industry.
