I have been a huge fan of the venerable Sturmey Archer AW for a very long time... with synthetic oil the hubs spins like it is a warm summer day even when it has been -30 C and beyond.

My current wheel set is on it's second bike now and the hub has been flawless through everything mother nature can throw at it... the only little issue has been with the shifter getting a little sticky in really cold weather.

Should add that the hub is older than I am and might need a new spring... I should overhaul it in the spring when I am doing a 3 speed workshop.