There are so many things that make this a special Bond film. Lazenby himself, who I wish had stuck with the franchise. A great Blofeld (Telly Savales) and a terrific Bond girl (Diana Rigg). John Barry’s best Bond score. Peter Hunt’s tight direction. The incredible ski and bobsled sequences. The 1969 Aston Martin DBS. And a mean streak a mile wide (a guy falls into the path of a snow plow). It seems weird to call a James Bond picture a cult film, but this one fits the bill.
The Stalking Moon offers up a great blog post on the many merits of OHMSS.