I really like Dachstein fingerless gloves with a mitten cap. Very warm and weather resistant, and they quickly convert to fingerless mode when you want to shoot or do things where finger dexterity is important.
I'm a big fan of the FL Grizzly Gloves and the Kuiu Northstars for cold weather hunting. A good dexterity/work glove that isn't hunting specific is the Hestra Fall Line Gloves (Used them for years on Ski Patrol)...