I'm still adjusting to the engine. GTI to R almost feels like coming from a punchy diesel to a 1.0 3-cylinder - in high gears at low speed that is. DSG doesn't help by going into D6 as soon as possible. So I leave it in S 
Thats one of the reasons i did not buy a pirelli mk5 and waited for the mk6 GTI. Its also why when i nearly cancelled my mk6 GTI order and was offered an R a local dealer had in i decided against it. The way i use the car daily this would simply get on my wick.
the R is a far better car than the gti.... anyone that thinks other wise is crazy!
R everytime 
Well im crazy then, but unlike you i don't drive at 10/10 th all the time.
It was not a money thing in my case as i did consider it, but It may have 4wd so better in the winter but for the money i saved on not getting the R i have a dedicated winter car, a mk2 GTI, and am also looking for a mk2 GTI 16V and would still have ~£5K change after that lot (At the time cost difference when i got the mk6 from the GTI to R). I would not like to use an R in winter up here anyway the front bumper is far too low, power, wheel size and weight, it simply would not go on the roads round here due to how deep the snow gets.
I do find it funny the Black 5 door R i see coming the other way on my way home every night does seem to think he has something to proove as he puts his foot down everytime he sees me in the line of traffic at the junction if im in the mk6. I just shake my head as it just reminds me of the mk2 GTI advert with the astra GTE in it.