Virtually all of the MK7 looks better than the MK6.
It's meaner looking.
Wider, lower, and there are more details to the sheet metal when you view the car in person than appear in pics. Some nice contours, creases and details...
Overall, the '7 is more upscale - as is the GTI tradition.
It's now even less of a hot hatch souped up econobox, and more a premium small car.
And to drive one?
The difference between torque, power and steering is night and day.
The 7 just takes off, where the 6 feels relatively sluggish unless you lay into it.
And the MK7 responds to steering imputs with a flick of the wrist, virtually no body roll and immediate response.
I know these things, because I recently traded my MK6 in for a MK7.