I am about to buy a NEW TRUCK need help!

The boat i have is not to heavy but I need something bigger than a small 6 to pull it.
Price issue thats where Ford come in. The X_plan I can get with FORD is a special offer that Ford gives to certian corprations and my companey is one. So I was told that I can get the lowest price with. Thats one of the reasons I was leening more to a FORD. But I GMC and Dodge has the new Active Fuel Management engine that suspose to get better Miles per gallon!!