Go on the Magic and see how you like it before you make a decision. I love the Fantasy and thought I would enjoy the Magic as well due to how many here rave about the classic ships. I wouldn't say I hated it, but it will be a long time before I am back on the Magic. It was just too small for me and there were a lot of maintenance issues all over the ship. The adult pool area wasn't nearly as nice as the Fantasy. My MIL is a smoker (and with me on that cruise) so I get that there need to be smoking areas, but the one on the Magic was right next to the adult pool. Even when I went on the other side of the ship the smoke drifted over. I thought the adult bar areas on the Fantasy were nicer too. I hardly drink alcohol, but I'm looking forward to actually spending time there at night now that my DD can go to Edge (she hated the club/lab). Not sure if you like Castaway Cay or not, but it was much less crowded with the smaller ship.
I'm not a super huge Star Wars fan. I like the movies, but I'm not into dressing up and would lose at any trivia game LOL!!! I had our upcoming cruise on the Fantasy booked before it turned into a SWDAS cruise. It's annoying that
DCL seems to feel many of their cruises need a theme now (SWDAS, Marvel, Halloween, Christmas....), but it is what it is.