I've driven a '13 Boss 302 and its an awesome car. Really surprised at what they've done with the Mustang. That 5.0 at 7500rpm with the sidepipe opened up sounds ridiculous.
As for the 'Vettes, I had a modded one for 4 years have driven everything from based C5's to modded ZR1's. Never let me down. Will buy a C6 Z06 or C7 in the next few years hopefully. For performance, I like driving them much better than any BMW I've been in.