Zion is amazing. One of my favorites. We found a great dry riverbed trail and saw no one for nearly two hours. My kids loved Arches. Had we known? We would have planned longer. Bryce we thought was meh, unpopular opinion, I’m sure. Canyonlands I can’t even remember.
Smokey Mountains is beautiful as well. Mountains, a ghost town, beautiful forest, an Ectomobile from Ghostbusters II, and motorcycle from Terminator 2. Seems pretty ideal.
The Grand Canyon review is spot on though.
Edit to add: Dry Tortugas is amazing. Take the last sea plane and revel in being lost at sea with 20 other people for serval hours. It’s Unlike anything else.