I understand that IOS 7 isn't everyone's cup of tea (and was never going to be) but I think the loyalty to IOS 6 is completely misplaced. It just wasn't a good version of the OS - it introduced nothing exciting (unless you count Apple Maps) and the few cosmetic changes there were just kind of messed around with things for the sake of it, inconsistently and in a pretty directionless way.
At least with IOS 7 you can see there is a cohesive design behind in, whereas IOS 6 felt like someone (ie forstall) had just taken IOS 5, dicked about with a couple of apps, and hit publish.
I've some sympathy if you really hate the modern look of 7, but if you have to go back, go back to 5 when the OS was still true to it's origins. 6 was significantly more half-arsed IMO.