meteor is a very nice colour, I would say that either of both colours fit the 997gt3 to perfection!
But from my point of view, I think I would go for white, just because its a gt3, and need a "special" colour for such a unique car!!!!
Lets be logical, I think 997gt3 owners, have this car just for the weekends, and some specific days, for the passion and love sportscars and racing sensations, this is not a car for the daily driving, it cant be match to the usability of a basic carrera, or carrera S, having said that, if I buy a 997gt3, is for having a very special, unique, and racing street legal car...therefore I want a special colour, a colour that is not very common to see!!!!, plus as we all know white REALLY MATCHES the 997gt3, with those black parts the car comes!!!
Let me put it this way!!....A Lotus Exige S, is exactly the same type of car, absolutely unique, just for enjoying the feelings of a racing car, and then at the end of the day, parking her in the garage, with the cover on....Nearly all Exige S pics I have seen, all these owners have gone for really exotic colours, such as krypton green, orange, yellow (like Mike).....
Well, I think I pretty much explained my opinion, so therefore-->white would be my pick
I would order a gt3 as follows:
-white colour
-carrera gt seats in alcantara
-seatbelts in red colour
-dials in red colour
-NO pccb, due to the price !!
-and xenon
btw to make things even more harder for you
a 997gt3 with artic silver, and black colour wheels, will also make the car so damn NICE !!!!!