Had a rare opportunity to compare rugby and football side by side last week - a mediocre pro US football game was playing simultaneously with the Championship rugby match on the TV.
Observations about rugby:
in switching channels, I would hit advertisements and other breaks in the play only slightly more often on the football side. The notion that high-level rugby is continuous action needs serious qualifying.
The points in that rugby match came mostly (entirely, on the winning team's side) from uncontested field goal-type (except from a tee) kicks awarded as penalties and so forth. In football every score is contested. (These kicks of course are breaks in the action).
Most of the action on the rugby side consisted of relatively immobile piles and scrums of bodies, with the ball going nowhere at the moment, and there were usually a fair number of guys just standing around at any given time. The moments when everyone was simultaneously in full tilt effort (as in most footabll plays) were few.
The extra physical skill involved was punting. Whether one views rubgy as a more skillful sport seems to depend on how one rates the skill of punting compared with the skill of blocking. I would rate blocking higher in skill, both mentally and physically, as well as more violent and strenuous.
The rugby players were about physically equivalent to linebackers and tight ends in football. That makes sense, if the similarity in job requirements is noted.
The single most athletic play observed in the afternoon was the block of a field goal during the football game. The player blocking the field goal was at least the size of the larger rugby players, and demonstrated more quickness and agility than anyone had the opportunity to demonstrate in the rugby match.
count said:
These boys should play rugby
Football could be played that way, all the time - it's not against the rules.