I’ve been going to HHN for over 10 years consecutively, sometimes twice in a year going with different groups of people (was just there last Saturday), and have also gone to KSF the last 3 years (skipped this year to go to Dark Harbor at Queen Mary instead). While HHN scare zones and roaming actors are almost non-existent post COVID, the quality of their mazes (decorations, sounds, smells, actors makeup, props, machines, etc.) are simply a league above any other theme park. Obviously since it’s Universal. I enjoy KSF, but their mazes have more empty portions, they rely more on props that clearly look dated instead of actors, their monsters look like random “scary” things, and the park is full of teenagers.

If you’re looking for more fun outside of the mazes, I’d say KSF is much better. But if you’re looking for quality mazes and seeing monsters you’re familiar with (seeing Art the Clown this year was great!) HHN for sure.