Just an opinion and hopefully no one is offended.
The 11/12 cars with the SVT Performance Package are the best bang for your buck in my opinion.
The PP gives you 3.73 gears, staggered 19/20 rims (the nicest stock rim that came on these cars in my opinion), a slightly lowered and stiffer suspension than the non-PP cars, and a gurney flap on the rear spoiler.
In 11/12 you also get wide band O2 sensors, the aluminum block, electric power steering, 2.75 exhaust, a better heat exchanger, and a hp bump. The interior is also a bit nicer than the previous models.
I have an 11 so I am a bit biased, my son has driven a 07 and 11 back to back and in his opinion there was no comparison
On looks alone or if I were to get a SuperSnake I’d get a 07-09, they just look cool.
The 10 and up have a more street friendly clutch. The 07-09 came with a ceramic clutch disc and they don’t hold up well to stop and go driving.