disappoint
Lifer
I vote for the Cruze. In the 1.4L turbo, based on the MPG I've gotten, you'll probably get around 34-35 going 79 MPH. If you get the 2LT or the LTZ, you get (in the price range) nice and comfortable heated leather seats and a nice leather wrapped steering wheel and shifter.
Ride is nice and planted even at 80+. Much nicer than the 2009 Civic I spent a lot of time driving. I can't imagine the Prius handles comparably at that speed.
Edit: Downside, I started using premium gas because it runs better with the A/C on in town. It's been pretty darn hot.
Also the 2LT and LTZ have sportier suspension. Fun taking turns taking turns. Is it my turn to take turns yet? Also don't get the 2011. 2012 or newer for the taller gears for better hwy mileage.
Cruze Eco will get you a bit better mpg but I still prefer the 2LT or LTZ for the fun factor.