It depends so much more on the surface than the tires, with the surface existing in any state between slush and solid ice. You want to either cut through to the road consistently, or ride on the snow surface without digging in consistently. The problem and loss of control is when you ride on top but break in occasionally. Until you are in fat bike territory (never breaking through) it is a wash. The same set of tires will work perfectly one day and lousy the next.