Maserati MC Stradale vs Alfa Romeo 8C vs Jaguar F-Type Coupe; Jaguar F-Type Coupe, mostly because it's the newest of the 3 and I just plain love the F-Type in general.
Shelby Cobra Daytona Coupe vs Ferrari 250 GTO; Shelby Cobra Dayota Coupe please, I'm not much of a fan of Ferrari as Shelby.
Rapier SL-C vs Mach7 Motorsports Falcon F7 vs Factory Five Racing GTM LS7; I would pick the Factory Five GM, I actually prefer the looks of that over the other 2. The headlights on the Mach 7 definitely don't work for me.