I'm swapping my mk5 for a mk6 this weekend personally I wanted cloth interior rather than leather, although from my experiences of looking, cars with leather seem to have better spec.
I wanted white aswell but they seem to be very popular with cars selling quickly and even commanding a premium, but after looking at lots of pic's of redrobin's car and saint steve's recently detailed car I have decided red is the colour for me and I am over the moon with my choice.
The mk6 gets alot of criticism for not being much different to the mk5 and I can see where people are coming from with that point of view, but for me that isn't a problem the mk6 seems like a natural progression after the mk5.
I will report back after saturday when I collect my car, good luck with your search.