I have a 2009 2.5liter 4-wheel drive with the 6 speed automatic. It's a company car, and I treat it roughly. I get 26-27 mpg on the highway averaging about 80 mph. The lowest I've gotten is 23.5 mpg, which included 25 miles of off-roading and about 1/4 of the total tank in town. I'm really surprised at it's economy.
I am suspicious of this 6-speed lasting a LONG time, though...