I have been to 20 active ballparks, and have seen the good and bad. What do you guys think?

Milwaukee is the jewel of Wisconsin. It is a great ballpark. Cheap parking, tailgating, and natural grass. And no rainouts. Great views of the field from all over. Great restaurant to watch a game from (Fridays) in left field, and open to the public. Well worth the trip to see your team if they visit there.
In the AL - Chicago. I know there is some bias there, but really, it is a great place to watch a game now. They have done amazing things there since US Cellular paid for the naming rights. They roof in the upper regions, the center field fan deck, Kids area above left field, the club level. And the views downstairs are top notch. The upper deck was slammed in the past, but it is better than a lot of the newer parks. The neighborhood is fine too now. 250,000 condos going up all over. And safe. Hard to believe it is the same park as when it opened. Add this to the best tailgating in baseball, and the best concessions.

Milwaukee.

the ballpark in arlington. that is a nice place to catch a game

PNC Park in Pittsburgh, I have been quite a few places, but the view from the infield overlooking the "yellow bridge" and the city is beautiful, its small, clean, friendly people, and you can always get tickets. BY FAR PNC PARK!!!! (and im a yankees fan.)

oriole park at camden yards! the view is amazing and there is so much to do. the prices are cheap and you see a great game!

Wrigley Feild.

Minute Maid Park, Houston, TX

Minute Maid Park

There is not a bad seat in Coors Field and Kaufman Stadium took me by surprise.

Jacobs Field. Really nice place and gets no love.

I agree that Kauffman is a beautiful park and I enjoyed going there. The backdrop in center is awesome in the evening. The only downside is that you have to watch the Royals.

giants its looks pretty nicein there

There are tons of beautiful parks, but I'd have to say Coors, Kauffman, or SAFECO.

Comiskey, Brew Crew, and wrigley is the most overrated piece of ****

Safeco

Actually all the ballparks in the NL central are great. Wrigley is good to see once for nostalgic reasons, but it isn't great. Miller Park is one of my favorites as is PNC in Pittsburgh, too bad the team stinks. Minute Maid isn't bad, but the train and the buzzing is annoying. Cincy and St. Louis are great baseball cities so Great American and new Busch are a lot of fun. I may be bias, but St. Louis is the best.

Kaufmann is way underrated. It has a great scoreboard in centerfield. The fountains that are behind the outfield walls are cool as well. Its just that nobody gets to see them because not many people go to the Royals games.

Milwaukee's stadium is but they don't usually have good teams so they don't really get recognized for it.