Going through, one player who missed the Top 60 centers list who we definitely should consider is
Vyacheslav Starshinov. When we did that list back in 2014, we knew that he was the best Soviet goal scorer of the 1960s, but that he wasn't nearly as good a playmaker as the more well-rounded Anatoli Firsov. (Overall, Starshinov was generally considered the 2nd best Soviet forward to Firsov in the years leading up to the 1972 Summit Series).
What's new since we did that list in 2014? We now know a lot more about Starshinov's really strong defensive game, as summarized in this profile by
@Theokritos :
Twenty years of Soviet Hockey: 1962 - 1982 (Index of player profiles in OP)
IMO, there's a pretty good chance he would have made the bottom end of the top 60 centers list if we had known about his two-way game at the time. As it were, he was a candidate in the last round, but didn't make the cut for the tiebreak vote.
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By the way, this is the full list of candidates for the last 3 spots of the Top 60 centers project:
Rod Brind'Amour
Guy Carbonneau
Neil Colville
Tommy Dunderdale
Bernie Federko
Frank Foyston
Duke Keats
Pat Lafontaine
Jacques Lemaire
Joe Nieuwendyk
Frank McGee
Bernie Morris
Milan Novy
Joe Primeau
Jeremy Roenick
Henrik Sedin
Vyacheslav Starshinov
Steven Stamkos
Pierre Turgeon
Round 2, Vote 15 (HOH Top Centers)
(Keats, Lemaire, and Colville ended taking the last 3 spots, Colville in the special tiebreak vote)