If you want to get only one NF / bag and for every weather, I would definitely go for the NF in the size MM (GM is just too large to be worn uncinched and PM too small IMO). I own three NFs and all are in the MM size, it’s just the best one for me personally.
I would go for the DE print as it‘s all-weather suitable
Got one two months ago and am very satisfied with it! The dark leather on the handled is now not a shiny but a matt finish one, I think they changed it to make it more durable. Here‘s a pic of mine 

I would go for the DE print as it‘s all-weather suitable


