I tend to find all the waypoints, clear dungeons of creatures and then move on but it seems that the preferred style is to run through as much of the level as possible and just fight the end bosses. I am also willing to make some serious concessions for the fact that I have many other demands on my time and have only played about 2.5 hours per night. I presume these other players are going in groups and helping each other out rather than soloing, but I don't think this explains all of the difference in play. Myself, I've managed to play primarily solo and get to Act 3 in Normal and a comfortable level 20. The ladder reset a few days ago, and already some players are up to level 90+.
