Here are a couple of quick links to articles (long and detailed) advocating Vachon as a Hall of Famer.
http://www.habsworld.net/article.php?id=1511
http://www.habseyesontheprize.com/2008/01/making-case-for-rogie-in-hall.html
Keep in mind that Vachon is the
only goalie in the decade of the 1970's to place in the top three on two seperate occasions when votes were being counted for the Hart Trophy. Not bad considering that this was the era of Dryden, Parent, Esposito, etc ...
In 1975 he finished second in voting to Bobby Clarke (and ahead of Bobby Orr, Bernie Parent, and Guy Lafleur - who finished 3rd, 4th, and 5th respectively). In 1977 he finished third in voting to Guy Lafleur and Bobby Clarke (and ahead of Borje Salming, Larry Robinson, Marcel Dionne, and Gilbert Perreault, who finished 4th, 5th, 6th, and 7th respectively). Pretty elite company.
Add in the 1976 Canada Cup MVP, and the playoff runs in 1967 & 1969, culminating in a Stanley Cup w/the Canadiens in 1969 and his underappreciated and largely unrecognized role in growing the sport on the West Coast and I personally find it hard to believe how he is not enshrined in the Hall of Fame when a contemporary like Gerry Cheevers for example, is.