Seem to remember Doug Jarvis was close to unbeatable on the faceoff.
That's my choice. It's a big reason the Habs of the late 70's were always able to clear the defensive zone so efficienty. He was so damn good in those all important late close game and defensive zone draws.
You have to go with Yanic Perreault because he was the most dominant of this era, and this is the era in which faceoff dominance can actually be quantified.
Other guys who deserve a mention from past eras: Mark Messier, Joel Otto.
"Best at faceoffs" from the coach's polls (runners up in paranthesis)
1971: Derek Sanderson (Stan Mikita)
1974: Stan Mikita (Bobby Clarke, Phil Esposito)
1976: Bobby Clarke (Stan Mikita, Doug Jarvis)
1979: Bobby Clarke (Doug Jarvis, Stan Mikita)
1984: Bryan Trottier (Doug Jarvis, Barry Pederson, Bobby Clarke)
Full voting results for the 1990s:
1993: Joel Otto (4), Peter Stastny (3), Ron Francis (3), Doug Gilmour (2), Adam Oates (2), Peter Zezel (1), Mark Messier (1), Mario Lemieux (1), Steve Yzerman (1), Jari Kurri (1), Dale Hunter (1), Brent Sutter (1)
1994: Ron Francis (10), Joel Otto (7), Doug Gilmour (1), Ron Sutter (1), Adam Oates (1)
I always recall Joel Otto being considered one of the best on the draw along with Rod Brind'Amour. Another player who was considered a faceoff specialist was Pat Conacher.
Perreault was so one dimensional on draws, thats what makes his effectiveness so mind boggling. It had nothing to do with cheating or using the body. He was just so quick and it was all finesse.
Now having said that, I dont think he was used much for crucial defensive zone draws, just because it was the only good defensive attribute that he had.
The best I have personally ever seen was Joel Otto.
Others I'd put forward for consideration, in addition to those already mentioned: Guy Carbonneau, Kris Draper, Mike Sillinger, Dave Andreychuk and Tim Taylor.