We do annual trip to a Fairmont resort 2 hours from us (Scottsdale Princess) that we enjoy greatly. It doesn't have the level of theming that a Disney resort does, but in the summers there is usually a theme (e.g. superheroes, this year is space) with different elements around the resort, kids activities, movie nights, fireworks, etc. They have 6 pools and several restaurants, plus spa. My kid says he likes it as much or maybe more than our recent Grand California stay (although we just stayed at GCH post covid and there weren't any kid activities.
They also do a lot of theming around holidays (Halloween and Christmas). It all is a step above other local resorts, but not as exciting to me as Disney. No idea if other properties in the Fairmont brand are similar.
My kids favorite hotel experience is still hands down the
Legoland Castle hotel. He complained that Disney didn't do anything nearly as cool.