Here are the factors I would take in to account and which one I think has the edge in each:
Cost per point: around equal at the moment, but CCV has a slight edge due to the longer contract. I would give this to CCV owing to the fact that you will likely have more residual value if you come to sell.
Points chart: not much between them, but CCV again has the edge for the times of year I like to visit. At some point in the future, post 2042, both BLT and CCV
points charts will be very desirable.
Rentability: I would give this one to CCV at the moment, having experienced renting both. BLT has fallen out of favour, but this may change once the refurb takes place.
Rooms/location: down to personal preference, I love both, but have a family of 3 so the ability to sleep 5 and have an extra bathroom isn’t important to me. If you have 5 then it has to be BLT unless you are a 2 bedroom family.
Value of home resort priority: I think this goes to CCV. Purely due to the fact that even with 11 month booking at BLT is it extremely difficult to get standard view studios right at the 11 month mark, probably due to year round walking. If you remove that category then the other BLT options don’t rely on home resort booking so much.
There is one slight downside for CCV (potentially) which is that after 2065, CCV resale points effectively become restricted to only CCV as I imagine that it will be the only ‘non-restricted’ resort remaining. However that is way too far in the future for me to worry about.
Overall my vote goes to CCV.