Welcome to the site from New jersey, Freecrowder.
As the prior owner of two very nice and well-worked up VTXs (2002 C and R models) i can confidently tell you that there is no real comparison between the Honda, a good and reasonably reliable motorcycle, and any Rocket III, which is a mindbending, awe-inspiring heartbreaker, because once it owns you, she will spoil you re: looking at or considering other large bikes very, very badly!
The key is to find the right year and model to suit your requirements and then, if it's a pre-2009 model to do your homework to ensure whether or not it has been "corrected" for known, potential or inevitable mechanical issues.
Good luck and just bite the bullet should you want to prevent future regrets!