I wonder if a number of great candidates just refuse to interview with Google because it's too cumbersome? I've met a few such people in this forum. Not many.

I wonder if a number of great candidates just refuse to interview with Google because it's too cumbersome? I've met a few such people in this forum. Not many. I'm not sure how one would even begin getting a rigorous estimate of that number. What is a credible sample of "great candidates" in this industry?