Defitnatly a last generation Mustang Cobra for me. But I'm probably biased since my dream car would be a Saleen/Cobra/Shelby.
[ame="http://www.youtube.com/watch?v=smmay-rmMX4&feature=related"]YouTube- When Cobras Attack[/ame] :yikes:
It's definitely the quickest car out of the cars you mentioned. I feel it's the nicest one too. The engine is tough as nails and they're pretty rare too so if you wanna keep it for a long time you'll probably even get your money back in the long run.
My 0.2 cents. Good luck !! *tu*