Southwest Road Trip in April

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we are going on a road trip (15 days) making the following stops. It is 4 of us. Me, my husband and 2 boys (ages 8 & 6)

Arrive Albuquerque at 8pm on Friday 4/3 , Canyon de Chelle, Petrified Forest/Painted Desert, Volcano Crater, Flagstaff, Williams, Sedona, Grand Canyon South Rim, Zion, Bryce, Canyonlands, Arches, Navajo National Monument, Four Corners, Mesa Verde, Durango, Taos, Santa Fe, back to Albuquerque to flyout on Sunday 4/19 at 7am

1. What on this route should we consider dropping?

2. What places are worth staying overnight?

3. What excursions/tours are must sees in each spot.

3. Which are just pass thru areas

4. I am trying to figure out which night we will be in each spot so I can book hotels. I feel overwhelmed...any help is great.