Vikings: The DH? Then why doesn't the National League dominate the games that are played without it?

There's only a couple of true designated hitters in the American League. Yes, David Ortiz is one of them. I've never liked the DH rule. As I almost exclusively see American League games being the Angel fan that I am and living just six miles from Anaheim Stadium, the DH rule is something I've come to live with even if I don't like it. It seems to me that the National League team should have an advantage when playing an American League team. If they're playing the game with National League rules, their team is already used to playing under those rules. The Pitchers know their role and have some batting practice. The Manager is used to making substitutions and late game maneuvers and switches. When the game is played with American League rules, it should still benefit the National League team. They can have a bench player fill the DH spot in the batting order and managing the Pitchers is just a matter of knowing when to take him out. There's no worrying about the batter order at all.