Super, I agree with you on FireStorm; however, I don't like coloring a team based on its fans. The Pirates themselves are a pretty respectable team, and are fun to watch. Plus - they were ironically the one team the Astros had trouble with last season (they won the total matchups).

Admittedly, there are a couple of teams that sadly both fans and players are rude to the team, but at least the Pirates team and most fans are polite to the Astros.

Overall,I think my favorite opponent fans visiting Houston whom I have seen (I haven't seen all the teams play the Astros) are the Atlanta Braves. I've yet to meet a really rude fan of the team.

(Mind you I want to make one point - I have seen a few Astros fans be rude to the opponents at the Park. Please, if the 'Stros lose, don't go chanting and say "(whatever team) sucks!" It really makes the team as a whole look bad, and I think you're all better than that.