Well Parker, I broke it down like this....
The 360,
PROS: Best Looking one and probably best Car of the bunch...
CONS: Also Most expensive of the bunch, OVERLY expensive, even ones about 10 years old will still be about 70-80 grand!
The R8,
PROS: Almost as hot looking as the Ferrari, Brand new 110K, 2-5 years older models can be around 80k, which isn't too bad
The Viper,
PROS: The car of my dreams when I was a kid, most affordable, 80 grand brand new
CONS: Older models were apparently very uncomfortable inside (dunno about the new ones), will potentially be discontinued soon!
The Aston Martin,
PROS: James Bond's Car! DB9 looks a lot like a DBS but cheaper, 2-5 years older models run around 60-70k