Automatic Transmission Control Module problems of the 2006 Subaru Forester

My wife and leased two new 2006 Subaru Foresters in may 2006. Since we obtained the vehicles both exhibited a hesitation when attempting to accelerate. We brought the vehicles to the dealership three times to have the problem corrected, but they were unable to do so. I then contacted Subaru customer service to report the problem. I did not get any satisfaction. I then sent two letters to the president of Subaru. Customer service contacted me again and said that my problem was characteristic of this vehicle, and that there is nothing wrong with them since tests showed everything operating according to specification. I finally got the factory representative to examine both of my vehicles and he stated the same as customer service. Needless to say I find this unacceptable. Subaru says that they cannot correct this problem and they will not replace the vehicles. They offered me $1,500 per vehicle if I were to trade them in for new Subarus. I find this unacceptable since this amont would not cover the expenses of breaking the existing leases and leasing two new vehicles. I feel that this hesitation proble is a safety hazard since you have to concern yourrself with the hesitation when accelerating in traffic.