I'm surprised it took this long for someone to mention Comerica. Fantastic park: nice amenities, sightlines, food, etc. The fans have been super-friendly and knowledgeable (a rare combination) every time I've gone. I'm also a really big fan of Phone Company Park here in San Francisco...it loses a few points for getting pretty chilly at times (much warmer than the 'Stick, though). I think Petco is great as well. Personally, I'm making my first trip to Yankees Stadium (which should be the #1 roadtrip for every baseball fan in 08 who hasn't been there) and Dodgers Stadium this year. As of now, I guess my ranking of currently-in-use parks I've been to, all things considered (including amenities, sightlines, food, fans, history, transportation, cost) would go: 1. Comerica Park (Detroit) 2. AT&T Park (San Francisco) 3. Wrigley Field (Cubs) 4. Fenway Park (Boston) 5. Petco Park (San Diego) 6. Miller Park 7. U.S. Cellular Field (White Sox) 8. Turner Field (Atlanta) 9. Tropicana Field (Rays) 10. Busch Stadium (St. Louis) 11. Rogers Centre (Toronto) 12. McAfee Coliseum (Oakland)