Obviously I haven't stayed at any of them, but some observations:
Ami's Acres overlooks the interstate so may be noisy.
Glenwood Canyon Resort has a nice setting. A little pricey and fills often.
Down by Carbondale is a KOA. Really nice setting on the river. Near great drives up to Marble or Maroon Bells. Fills often.
Past the KOA on CO 133 is a NFS CG. Redstone CG has some sites with water and electric but no sewer. I believe they have showers there too (unusual for NFS CG's here in CO). Pretty full, but keep an eye on Recreation.gov and you can often pick up a spot as people's plans change and they cancel reservations.
One often overlooked option is Gateway RV park by Carbondale. A few FHU sites. Owned and run by the city of Carbondale. Worth checking out to see if they have any spots. Right near the intersection of CO 82 and CO 133 but below grade so reasonably quiet. Right on the paved Rio Grande Trail, a converted rail grade for walking or biking.
Ken & Allison
2 Camping Cats (1 diabetic)
1996 4Runner, TRD Supercharger, Edelbrock headers
2007 Fleetwood Arcadia, Honda EU2000i
4 mountain bikes, 1 canoe, 4 tents, 8 sleeping bags, 2 backpacks
(You get the idea!)