How can a stadium be bad for you and great for your opponent? I mean, if your team isn't built for it, how is it that the other team fits in just fine and they were built for their home? Just food for thought... and I really would like your opinion.

In each game, one team fits the stadium better than the other. It doesn't have to be that one "fits great" and "fits terrible" necessarily. Lets say you drafted 200 hrs and then picked the astrodome (-4HR). Lets say your opponent drafted 150 HRs. Their home park may be something like Wrigley (+2HR I think), but when they come to the Astrodome, they will still have an advantage over you even though the dome isn't ideal for them. Its "less bad" for them than you. If you pick a bad enough park, most of your opponents may have an advantage over you.