If you asked 31 NHL GMs who they would pick, 30 wouldn’t hesitate to pick Sid & the 31st team would sweat it out before deciding.
It clearly shows your bias when you decide for all GMs to chose great center regardless their need. A lot of teams have 1/2 legit centers, getting an epic winger would be better for them. With many great centers in the league, great winger is the rare breed today.
If you mean that all Gms will prefer Crosby to start a team, it doesn't prove his better either, because at equal talent, GM picks center over winger. At equal talent, GM will pick Canadian over Russian. You can't really use this argument.
Without saying that picking Ovy or Crosby won't get you stanley cup without champion team. And even if they will get SC in future, it doesn't mean the choice was right since you can't prove if with other one you wouldn't get it faster.