Dull - Rugby union - a couple of seconds of action then a lineout then an infringement so penalty kicked to touch so another lineout out, scrum, scrum collapses another penalty, kicked to touch a couple of seconds of action, infringement at the ruck, another penalty, kicked to touch, lineout etc. Dull. 80 minute game with 33 minutes of ball in play time. Average of 37 lineouts, 15 scrums and 12 penalties per game (IRB figures). So very little actual action.
Well, apart from the fact that lineouts and scrums are action - highly technical, engaging and exciting bits of the sport which always has something happening - theres always a contest between the teams, theres always excitement - unlike football, which has long periods of tedium while the ball is being passed around the defenders and midfielders..... in fact, I find the most technical and strategically 'good' games deadly dull (cf Spain vs Italy in Euro 2008).
Sorry, OT rant, but as a(n ex-) forward I feel the need to defend my bit of the game....
On topic - the American sports fraternity seems to place a huge emphasis on the offensive rather than defensive play - so a game in which scoring is so rare needs to change a bit to grab the market - maybe bigger goals