Strange coincidence. I needed to drive up to Virginia to pick up some furniture last week. I was originally going to take my truck, but decided to rent one instead. What I ended up with was a 2011 F150, XLT SuperCrew with the 3.7 V6 with 3.73 gears.
The truck is pretty quick. I did not tow a trailer with it, but it was pretty impressive. For the entire trip, it averaged 20.23 mpg. Of course it didn't do as well at 75-81mph on I-95. Driving locally in rural Virginia, it got 21.5 mpg.
I'm not sure that I could buy the 3.7 over the 5.0 or the EcoBoost, but I would take it any day over the V6 Ranger. Very nice truck.