Take a look at the points calculators. David's has a good one.
https://www.dvcrequest.com/cost-calculator.asp
It's not unusual for an OKW 2BR villa to require fewer points than 2 Poly studios. If saving money is more important than proximity to the parks, I would choose the OKW 2BR. They've been recently refurbished and everyone gets a real bed, not a fold-down, flip out makeshift bed unless you need to separate the kids and one sleeps on the living room soda bed. Real beds. The living room will be a godsend when it comes time to put the kids down for the night in the second bedroom. And even if you don't do a speck of cooking, the full kitchen is worth it just for a quick breakfast before hitting the parks. Plus you're guaranteed to be together in one villa.
A couple more points, since OKW is older, larger and well-established, your chances of renting successfully are greatly increased because there are more owners there and they are more likely to put their points up for rental than Poly owners, who bought only recently and tend to use their points for themselves. Agencies like David's charge less per point for OKW than they do for Poly. So fewer points + less $/pt. = more money saved.