How old is your kid(s)? It sounds cliche, but there's absolutely something for everyone, and Disney activities really aren't gendered. Even things you might not consider, like the Frozen singalong in DHS and Enchanted Tales with Belle in MK do a great job of making the experiences fun for all, including non-princess fans and adults. The majority of character dining options aren't princess-focused, so if your kids like characters in general, any of those will be a hit. I have a daughter who doesn't like princesses and a son who doesn't like pirates and we've never had to think twice about entertainment options for either. When my son was young he was obsessed with trains... riding the WDW Railroad in MK was a big deal, and he could literally stand around for an hour watching the model train setup in Germany in Epcot. All of the Star Wars stuff in DHS, and the
Lego store in DS are also a big hit.