"Maybe I am biased but I don't think one of these guys is over 5'6" in height or weighs more than 150"
True, but the average grain-fed Spartan hoplite was about these proportions...
Whoops...point already made above.
If 5'6" 150 was the average then a Pitt or di Caprio would have been 4'9" weighing in at 90 pounds back in those days.