How do you would compare so goals to field goals is beyond me. That's not even apples and oranges. More like apples and snowmobiles.
That bring said, I think the separating goal in a so should count in the stats. If you win the so, your team gains another goal. I feel it should be given to the deciding scorer. Also the gw save should be given to the goalie.
As for soccer: pk shootout goals do not count. Not in Norway, nor in any other country I know of where soccer is played. In soccer, if the score is 2-2 after ot ( or et- extra time), it will still be 2-2 after the so as well, a footnote added to the digit belonging to the winner reveals who's won.
Side step: wish all the Norwegians would chill just a little bit. It's great that mza is doing so well and that so many are enjoying his success, but come on, you don't aproach the board of a great original six club with the " we do it like this in Norway, I think that's better" attitude.
Sadly, americans have little to learn from norwegians when it comes to hockey. We're hundreds of miles behind America in the hockey departement.