Are you speccing the Car Net App-Connect option for £125?
If you are, between those items, I would choose the keyless and winter pack over the nav because you can hook up your smartphone via App-Connect (CarPlay, Auto Android, Mirrorlink) and use either Maps or Google Maps for the nav. So nav largely redundant.
Keyless is just brilliant, works seamlessly. I have heated seats (which come with leather) but if I was going with cloth interior, Winter Pack would be the first thing I would tick. Could not be without heated seats ever!