I ride with the Nokian W106 622-35c on my crosscheck.
Also on mostly unpaved roads that become hard packed snow and finally compress pretty much
to ice. They are highly effective on the hard pack/ice surface. Have not tried a 559 studded tire.
IMO, the difference is how smooth the surface stays. If a lot of ridges bumps pocks etc develop,
more studs especially toward the tire edges would probably be a benefit. If the surface stays
fairly smooth, then the W106 is a great choice. It is snowing sideways right now. However yesterday
afternoon I was riding for about an hr, the road surface was still in the "mealy" stage (we've had about 16" of snow this past week), not really quite packed yet- so I sunk in a little in spots. A wider tire might have helped reduce that. I think it depends upon the most probably surface conditions.