Great pictures - thanks for posting. Love the double bag action...hehehe.
I love my Navy patent reissue - so I say keep the Navy - it is stunning.
The while is pretty - but it might be easier to get another white in the future as white is a standard color - navy seems to be a hit or miss color from what I have seen of Chanel.
And you have a white already.....or heck, just keep them all!!!