I'd say that any of CAN, USA, SWE, FIN, and RUS can win on any given year. Other countries like the Cech Republic and Switzerland, although really good, haven't really reached the same status internationally as the other 5.
It's sad when you think of it as the Cech Rpublic and mostly Slovakia used to be much stronger in the mid 90s to early 2000s than they are now. For Slovakia, those were the years where they had stars like Hossa, Stastny, Gaborik, Chara, Bondra, Palfy, Demitra and others. For the Cech Republic, those were the prime years of Hasek, Jagr, Nedved, Reichel, Straka, Holik, Bonk and Lang among ohters.
At that time we had a true top 7, with talent much more widespread. Now we have a top 5 and then a group of countries like Switzerland, Germany and the Cech Republic that fight to ascertain their status.