IMO I would not buy SSR direct! Resale prices are going in the mid to low $50.00pp range vs. 99.00 direct. That is a difference of $5500 -$6000 which is a BIG chunk of change and at least 2 - 3 cruises paying cash.
I would suggest you visit both properties if you have not already done so. We own at both BLT and SSR. We bought SSR for THV but also to use those points when we plan a vacation under 7 months. BLT to guarantee at least once a year we are in the resort we want to be in. Location for us was the biggest factor for buying BLT. We have 3 teen DD's and it is great for them to be able to go to the MK (our favorite park) whenever they want without worries. It is also a great location for little kids because it is very easy to get back to the room for lunch, naps, pool time and then go back to the park for the fireworks. BLT has the monorail and many dinning options with all the monorail resorts. SSR has DTD right at your door step for dinning, shopping and entertainment. BLT cost more "points" for nightly stays. With that being said I think SSR "points" are a bit high for the location and what the resort has to offer. If SSR points were more in line with OKW I think you would see a lot more interest in SSR.
So far I toured all resorts, stayed at AKV, BLT, and OKW and loved all of them for different reasons. We are staying at THV in Feb. cannot wait!
Good luck in your decision!