Variety used to poll the NY Drama Critics for their personal best-of the-season. These were done into the early 70s. The results were published in an issue as were the individual ballots of who chose whom.
This poll was done after the NY Drama Critics Circle awarded their Best Play and Musical prizes, but before the Tonys were awarded. Often, but not always, these awards were harbingers of who would win a Tony.
The winners were plurality winners and some were named Best in their categories with as few as 3 votes out of maybe 12-16. Ties were also allowed. On the other hand, some Poll winners were landslides. In 1965 both Zero Mostel and Alice Ghostley were the overwhelming winners with maybe three fourths of the votes in an open field. Voters could also cast half votes if they were of a split mind (which critics often are).
Some enterprising theatre trivia writer could go into the Variety library and seek out the winners and runners-up. While not worthy of a thesis, the data would be interesting to us.
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