Those are good incentives, as far as the best, that certainly is debatable, as what may be considered the "best" for some purchasers may have no meaning to others.
For instance, when we purchased in 1992, we received free theme park admission for 1/2 the capacity of our villa (studios and 1 bedrooms received 2 passes, 2 bedroom 4 passes, and Grand Villas received 6) during a stay at OKW until the year 2000. Given the price of APs, that would have been about a $4800 incentive for studio and one bedroom dwellers, over the course of the incentive. But they were NOT actually APs as this only applied when you stayed at OKW, they were like the old length of stay passes, but did not include water parks, PI, Disney Quest or Animal Kingdom, only the 3 main theme parks in existence in 1992 were included. Minimum contract at that time was 230 points. So an average of $20.87 per point incentive, estimating a $300 value per year per pass.
If you had to try to put a value on the current incentive, it would be a $8 per point discount for $1280, estimate $8 per point for the developers points, so another $1280 plus $500 reward dollars, for a total of $3060 for 160 points, or an average of $19.13 per point. So pretty close in value per point to the original incentive. Of course, the selling price per point has increased over the years, but the actual incentive is close. And depending upon the actual value of the passes we received, vs. the actual value of the developers points, it may indeed be a better incentive.