Christian is far and away the tallest stuntcock in porn, gotta be at least 6'5". Other than that, I saw maybe 4 guys at my height (6'1") when I went to AEE. The whores aren't much different. I'd estimate 5'4" is the average. The two tallest whores I've seen were Puma Swede or Lexi Bardot, both in the 5'10" range. BTW, that whore Puma has a great rack.

Or...to sum it up with a picture.