If it's not on your radar, one car I have owned for years and been very impressed with is the Lexus CT 200h. The 2011/2012 models are starting to get below $10,000 - in fact I see one on AutoTrader right now for $9,500 with 85k miles on it, and one near me on CL for $6,500 with 155k. Super comfortable/quiet/luxury experience, gets 40mpg on regular gas all the time, and it's got the practicality of being a hatchback. I happen to think it looks really cool too. Oh, and Lexus reliability, which is even higher than Toyota reliability. We've had the car from 70k miles to 120k over 5 years and the only unexpected maintenance we had was $1000 for a new water pump - so, $16/mo in maintenance. Oil and tire changes are cheap too since it has economy-car sized tires and a Prius engine that doesn't take too much oil. Worth mentioning it shares the entire drivetrain with the Prius, so it's dead reliable but much more comfortable and nice than a Prius on the inside.
Sorry for going on a tangent about my own car, but I think they are getting into a reasonable Mustachian price range and I can't say enough good things about my ownership experience.
From the list you already provided, hands down the Civic. Super reliable, cheap to maintain, and the low mileage is going to be really nice.