I'm sure such lists have been done before, but it would be interesting to list the evolvement of the "Alltime Top10" through years and decades.
Using Hockey News book "Century of Hockey" from late 1990s as reference, I'll start with something like this with some players without too much consideration.
At least by the end of 1930's (maybe even a decade earlier) there's enough organized hockey history, to come up with all-time lists.
So, who would be on the list at that time?
End of 1930's: maybe Cyclone Taylor, Didier Pitre, Joe Malone, Newsy Lalonde, George Hainsworth/Georges Vezina, Sprague Cleghorn, Howie Morenz, Eddie Shore, Charlie Conacher
End of 1940's: Maurice Richard must already be there, who does he replace? Anyone else, Dit Clapper perhaps?
End of 1950's: Gordie Howe certainly. If Harvey, Kelly, Believeau, Sawchuk too, then it's a lot of turnover. Who gets dropped outside of TOP10?
End of 1960's: Bobby Hull surely replaces someone, maybe Mikita, Plante and Glenn Hall?
End of 1970s: Bobby Orr is in, how about Lafleur, Esposito, Bobby Clarke?. More Canadiens? (Dryden? Robinson?)
End of 1980's: Gretzky now doubt. Perhaps Potvin, maybe Bossy and Trottier. Any other Oilers, maybe not? I guess no to Dionne or Stastny.
End of 1990's: Lemieux, Bourgue, Jagr, Hasek. If Messier is in too, then it's a lot of turnover again. Does Yzerman deserve any consideration? It's getting crowded and tough to make TOP 10 by now.