Baseball is the most boring loving sport when you aren't actually playing it. Even when you are playing it, not much is going on unless you're in the field, but most of the time you're sitting on your thumbs in that damn box.
When you compare it to Soccer/Football, the american "football", and Rugby you start to see where all the action is really at. I leave Hockey out of this equation because unlike Football/Rugby, where tackles are endorsed, violence isn't exactly the best thing in the world in Hockey. It just drags the game down more then anything. Most hockey games are loving boring because of this.