Red is still noce, my first one i loved, and when it was polished up it looked sooooo good. Plus it actually tends to be one of the rarer colours around, even though SEAT used it as the advertising colour for the original FR's.
But one of the nicest colours i have seen in the facelift FR has to be the is the Muna Grey think it is not sure, but its a dark anthracite grey/black and looks real nice ( one of the newer colours)
to sum up though,
Red= safe choice, a little rarer and polishes up great + base colour so cheaper
Yellow= looks awful with silver wing mirrors, and for some reaosn still only the cupra looks good in yellow. Plus Resale issues, still not to everyones cuppa tea.
Silver = safe bet too, but a little plain, and how common is silver these days ( dam my MCS is silver DOH!!!)
Black = bugger to keep clean, and even when you do it shows up all the swirl marks. Plus it hides too many features, even cupras look standard in black, don't really stand out.
Grey = is nice, again not so common, and is neither common or rare. A little bit average bt never the less its nice.
the light Blue = not sure if still available but it looks gay + plus most of the seriously cheap FR's are usually that colour as they look poo IMO
Thats your lot really.
One colour that is still unavailable and would look amazing in the FR or cupra is White.
But if i had to choose again, it would be that luna Grey or whatever its called, looks real nice.