i find any sport/game can be interesting to watch once you know the rules and begin to understand the strategy. i can even watch nascar and regular season baseball.
likewise, i even like cricket. but i don't compare sports saying "this one is for people who are harder" because im not a cock.
fed up trying to point out the difference in rugby and american footy. suffice to say any particularly bad injuries i got was from playing american football, not rugby, and i've played both a hell of a lot