Some comments on a few on your list:
1) Cedar Breaks NM UT - High elevation means snow lingers late and returns early. Last time we were through there, some of the interior roads on the CG needed some work
4) Death Valley and Great Basin are rarely mentioned. Death Valley is on our to-do list once DW retires and we can travel somethime other than summer. Seem to get to GBNP every five to seven years. Some great hikes. If your rig isn't too big, camping at Wheeler CG even in the summer is quite tolerable temperature-wise. Some great hikes around Wheeler Peak.
5) Guadeloupe Mt NM-- we stopped but it seems to be a serious hiker only park. Little road access. Did little hiking there 35 years ago. Need to return.
6) Kings Canyon CA-- Over shadowed by Yosemite - Don't forget Sequoia neareby.
7) Lassen Volcanic CA--really should be more visited - Nice hike to the top and some of the thermal features give just a glipse of what Yellowstone has in spades.
8) North Cascades WA - Had to cancel last time because of the fire!
9) Saguaro AZ - Did this between Christmas and New Years. Perfect time to go.
11) Basin and Range--who's ever heard of this one? - Basin and Range has only been around since 2015 so pretty new.
12) Browns Canyon CO ditto above - Browns Canyon is kind of overwhelmed size-wise by the Arkansas Headwaters Recreation Area
14) Colorado CO--Been there a couple times not even good hiking -Nice CG (Saddlehorn) that makes a good base camp when visiting Rattlesnake Canyon arches or mountain biking the various trails around Fruita. Cooler up there at night and great views of the valley.
16) Oregon Caves OR--been there a looong time ago. Did not make any big impression - The caves have suffered a lot of desecration over the years, but the Chateau makes the whole visit worthwhile. The stream that flows out of the cave is channeled to flow through the dining room!
