Doesnt really matter. GW is slightly better for what im guessing youre using it for. There are 2 (minor) differences.
stack height for MN is like 5ish mm higher than GW. Cant remember off the top of my head but its higher but not by much
MN is compatible with gripwalk, alpine, and touring boot soles whereas GW is only gripwalk and alpine. Again, doesnt matter unless youre trying to wear touring specific boots in the resort