1. Slovakia
2. Latvia
3. Finland
4. Czech Rep
5. Belarus
6. Estonia
7. Kazakstan
8. Russia
9. Sweden
10. Switzerland
Source: google trends
Regardless of Google Trends, for the top European hockey nations (Russia, Finland, Sweden, etc.), the World Hockey Championship is their Stanley Cup. I would put Russia and Sweden, higher on the list. I remember years ago, I was at a sports bar in Toronto, and they had some other game playing on the TV besides a game that featured Team Canada in the preliminary round of the World Hockey Championship. I told them to put on the game, and they had no idea the tournament was even going on.
If it is not best on best, frankly, North Americans have no desire for this tournament, unless their team is doing well and in the Finals. I did not watch a single game until Canada reached the Semis. I am guilty of that also. Looking at Canada's roster, I fully expected them to lose in the QF against Russia. I am stunned they won the Gold Medal with this roster of players, and Darcy Kuemper playing like Patrick Roy at times. Years from now, this Canadian team will still be remembered for starting 0-3, being shut out against Latvia, and beating Russia, USA, and Finland (who were all significantly better on paper). Nobody in Canada predicted this team would win Gold.