I'll take the controversial position that Camden Yards is overrated (via ALOTT5MA). Yes, it's important and historic; yes, it was a top-ten park when it opened, perhaps even top-three or better. But now that Camden set the standard for new parks, and the vast majority of cookie-cutters have been replaced with Camden-style parks, Camden is inferior in many ways to the majority of late-1990s/21st century parks that refined the Camden model: ceteris paribus, I'd see a game at Minute Maid over Camden any day. Bank One is also superior, and I hear good things about the Seattle park.

The worst park is perhaps RFK, though I haven't been to Tampa.