I've now had 4 MK5 GTI's inc an Edition 30 and Pirelli and I've just had a Golf R.
Although the Golf R is still standard (not for long) it pisses over any other Golf I have owned (inc MK5 R32). It's not just about how quick it is, or how quick it can go round corners, it's about the way the car makes you feel, and in this case the R makes me feel EPIC!

Yes it's quick and has great traction, but it also comes loaded with really high spec as standard and the cabin and controls feel far better than either the MK5 or the MK6's I have driven.
Fuel consumption wise, the worst I have had so far on my commute is 27mpg, and the best is 32mpg, so not all bad!