The way it's set up now honestly hurts the NL. With interleague play taking place more often, AL teams have a distinct advantage because it's reasonable to roster a DH only type, whereas the NL teams just slot in a bench guy for AL-park games. On the other hand, since pitchers all suck pretty equally at hitting, the NL teams gain no real advantage in NL-park games. Teams like the Dodgers can afford to have an expensive bench, so it can lead to a better chance in the standings by a few games at least.