Cruze Eco with the manual transmission. I did similar mileage for two years in mine, and it was a trooper. Still is on my commute of merely 50 miles a day now. Even in this cold weather I'm still getting about 40-41 mpg in suburban/urban expressway driving. That shoots up to about 45-46 mpg in the summer, with occasional days of 50 mpg.
Pros are decent passing power, good on gas, and a manual that's quite livable in traffic. The seats are also good for long-distance driving, at least for me. Parts are also quite cheap, and GM has worked out many of the early-production issues. Cons are the resale value is poor.