My list of parks include Seattle, Minnesota, Toronto, White Sox stadium, Fenway and whatever the Giant's park is called now.
As far as experience outside the stadium goes, like pre and post game, Fenway takes that and it's not even close but dead last by far on in-game experience.
Seattle, Minnesota and White Sox have very nice parks. Chicago's is kinda... plain (not the right word but...) there's really nothing about it that stands out, but it does everything you want it to do.Seattle and Minnesota are nicer from an esthetic standpoint though.
Toronto I was there before the recent renovations and the lid was closed, and the team sucked at the time, but it was easy to get in and out, view was fine from where I was in the TD Comfort Zone. Easy to get food and take a piss. Average experience. Probably would be very different now, or with the lid open or a packed house.
San Francisco still takes the cake for me. Everything about watching that game was excellent. Views are incredible, people were nice, easy to get food, drinks, and get in and out even from the nosebleeds. Great walk around the stadium and the neighborhood, though still not even close to the former Yawkey Way (now Jersey Street).