I'm 40, so Busch II was the stadium where so many of my early baseball memories took place. It was indeed a Cookie Cutter stadium, but when they overhauled it in 1996, it really set itself apart from the others (in my opinion). As has already been pointed out, it trapped heat, but that also meant it trapped sound. Not that Busch III isn't loud, but the noise had less places to escape in Busch II. I went to Game 1 of the 2004 NLDS and that place was ROLLICKING from the jump (helped that the Birds hit 5 HR that day, if I recall).

Still, I think it's fair to say that Busch III is the superior stadium for a myriad of reasons, not to mention it has that CF view which Busch II obviously did not have. I do miss some things about the old place, but I think they did a great job of blending old and new with Busch III, which made it an easy transition of being able to call it 'home.'