Okay, I have driven on my new Nokian H tires for about a week and a half, and so far, I like 'em! They are probably *slightly* better rolling resistance than my Michelin X-Ice tires, which are already excellent. The Nokian H's are larger diameter, and the initial calibration measurement I did shows they are rolling 6% farther than my odometer reports.
I am about halfway through the first full tank of gas with them -- I drove about half a tank on the previous tankful. Here's a picture on them on my xA:
They are very quiet running, and they grip well in turns (coasting around some turns requires carrying some speed...). My one quibble is they feel a little squirmy on the rough surface of roads they are readying for repaving. Ride (with 51PSI) is slightly firmer than the X-Ice's, but it is not harsh.