Where do YOU want to stay, and have that home priority for? That I think should be a key factor!
Also, keep in mind that what rents today may not rent the easiest in the future.
Of your list, I would put them in order of:
1. CCV -- it's very popular in the fall season, especially Christmas, and it has a "legacy
point chart." People looking to rent are often looking to spend less, so favorable
point charts are a win. If you're able to snag studios to rent out, you'll find demand for them.
2. RIV -- it's the new resort, it has skyliner access to Epcot and Hollywood Studios, its studios are the 2nd largest in WDW. And starting 2/1/2042, it will be the only EPCOT
DVC resort (until/unless Disney flips BCV and BWV. But RIV's point chart will probably look like a sweet legacy point chart at that time!)
3. VGF -- Disney is converting a building here because they are struggling to fill rooms. It's entirely possible that there will be a huge demand for VGF studios because renting is much less expensive than booking a room direct, but I also wonder if the demand just isn't there? It has a high point chart, expires in 2064 (BEFORE both CCV and RIV), though it IS on the monorail and now has that walking path to the Magic Kingdom.