NHL teams always have a first line of forwards, a second line of forwards, a third line of forwards and a fourth line of forwards. Those lines consist of a left winger, a center and a right winger. In general, it's beneficial to target players that play on one of their team's top-two lines for fantasy purposes. Players that play on one of their team's top-two lines are generally more offensively gifted than those that play on one of their team's bottom-two lines. They're also generally put in more advantageous positions to produce goals, assists, shots, etc., making them more valuable in a fantasy setting.