Only if you consider "bang for buck" based on number of nights and only if you stay at those resorts.
If you buy OKW as your home resort, but you intend to use all the points at GFV, you will get horrible bang for your buck.
But I also see it as.... a Motel 6 has more "bang for the buck" than a Ritz, in terms of cheapest rooms per night.
So yes, those resorts have the cheapest points and the cheapest
point charts but only great bang for the buck if you actually want to stay in those resorts.
So "bang for buck" really needs to be examined a couple different ways...
"Bang for buck" for accumulating points to use elsewhere: Here, you want the cheapest points AND lowest dues. SSR is the major winner here. Yes, Poly has lower dues and more years, but the initial costs are MUCH higher. So throw in the time value of money... SSR really leads by quite a bit.
Best "bang for buck" for home resort, with intent to stay at the home resort -- That's too subjective to really analyze. Strong argument could be made for AKV -- long contract, fairly cheap points, and unique room offerings with value rooms and club level rooms.
Strong argument could be made for Riviera -- even direct -- with direct points cheaper than some resort resale points and 49 years left on the contract.
BLT's long contract and semi-low
point chart, making it the most affordable monorail resort, makes it a bang for buck contender.