White gold here; a quick scan of the case shows not a single mark on it, and I wear it at least a couple of days a week (for many months now). Bear in mind that precious metal watches do tend to be slimmer and a smaller diameter so they are not quite as exposed as a big SS lump!
If I wallop it on a door frame though I would expect it to mark whereas I might get away with it with an SS watch. Fingers crossed so far...
Another thing to bear in mind is not all WG is the same; many makers rhodium plate their white gold which makes it very difficult to refinish if scratched.You won't get many polishes out of it before the rhodium has gone and it looks quite yellow underneath. Worth checking whether it's white gold or white gold with rhodium plating. If it's plated, go for rose or Platinum!
Lastly the feeling... WG is a very luxurious metal, you feel the weight and warmth, you know it's there. But you may not get that feeling and if it's based on looks alone, then the difference is very minimal.