re: Nicest/Best MLB stadiums and experiences

I've been to Shea, Tropicana, Philly (Both Veterans and Citizens Bank Park), SunLife (When it was Pro Player), and Petco Park. Here's my ranking.

1. Petco Park- Absolutely great ballpark and atmosphere around it! It's the only "Downtown" stadium that I've ever been to. If you go to San Diego, go to Bub's outside the stadium. Best sports bar I've ever been to.
2. Citizens Bank Park- Great sightlines and Ashburn Alley is great!
3. Shea Stadium- I'm a Mets fan by birth so I'm biased but good group of fans.
4. Veterans Stadium (I've been here the most)- It was an outdated dump like Shea but the fans there were a wild bunch. I always had a story leaving there and the longtime employees (Ushers, Vendors) were great and told me many war stories in the 3 years I lived in the area and went to The Vet.
5. Tropicana Field- It's not a real ballpark but it tries unsuccessfully.
6. Pro Player- Sorry excuse for a hot, shadeless stadium, that had no business hosting baseball.

We're moving to Dayton, Ohio in July and will be visiting Cincinnati and Cleveland this year along with trying to fit in Pittsburgh and Detroit in future years.