ive just been on this trip and it was one of my best trips ever, you are on the go 90% of the time but its absolutely brill,
the jeep ride in sedona is fantastic, I never new how sedona was so beautiful. Also if you ask you can go horse riding in bryce canyon, and the helicopter is brill, i got sat up at the front with the pilot too, take plenty of sun screen as it was very hot but very dry!!! and dont forget your camera!!!!
i wish i was coming back with you guys as I know you will have a wonderful time.