I'd go to Columbus State, IMO. That would be your best education for the buck. All the other automotive technology schools are a waste of money since education is not a huge part of this field, it's mostly experience. I went to school and I thought I knew a ton, until I started working at a dealership. I have since learned so much more than just going to school.
Just be aware that it is verrry expensive. Don't ever cheap out on your tools, b/c you get what you pay for. I have about $7,000 in tools right now and my box small box is only half full. I pay around $55 a week in tool bills. I also didn't graduate from college and I'm doing rather well for myself. I'm already making more money than half of my siblings who are 30+ years old. ASE certs do help you get a job, but it's mostly experience when someone is going to hire you.