So far I've seen games at Wrigley, Fenway, AT&T, Rogers Center and the horrid dump the White Sox call a stadium.
At&T was the best by far. Wrigley and Fenway had a cool history factor but really the views and sightlines are pretty bad/garbage at Fenway unless you're right behind home plate or in the front few rows down the lines. The seats are horribly uncomfortable and really the whole place needs to be imploded. Wrigley was far better in that regard despite the obvious age. RC was okay, nothing special but not horrid, I was there when the dome was closed unfortunately so I didn't get the open air experience which I suspect is better.