NHL Betting Question

NHL Betting Question I have a basic question here. Hoping someone can give me some advice or information. Let me offer a specific game to use as an example. Saturday the Caps are Favored -160 on the ML at home. Or you can play -1/2 goal for +103. If you play -1/2 line, they have to win by just 1 goal in Regulation. If you play ML, they can win in OT or a shootout, but you have to lay -160. Is it better to lay the -160 on the ML or take the -1/2 line on these types of plays over a course of a season?
Don't have any facts or info but I assume these two are pretty much the same.