What car should i buy?

ok this is what i want in a car...stylish ...good mpg (at least 20 city/30hwy) it doesnt matter coupe or sedan..ive had these in mind..civic,altima coupe, scion tc,accord,maybe the new corolla,also i want a new car so theyl be an 08 and newer but i dont mind buying from a private seller..any other good recommendations would really help...