The Force Awakens was a good movie that borrowed too much from A New Hope, but is still the best Star Wars movie since Return of the Jedi and set up the stakes for Episodes VIII and IX whilst setting up new characters to develop in future installments.
Rogue One was, by contrast, boring tedious filler capped off with a great fight sequence. The characters aren't particularly likeable or memorable, the main villain (dude in the white outfit) is a joke (even Grevious is more memorable, and that's saying something) the story is predictable and the entire thing just seems like a colossal waste of time. That and CGI-ing Peter Cushing and young Carrie Fisher into the movie just feels...wrong.