Turf Moor was pretty bad. While the wooden seats didn't particularly bother me (I was stood up for the majority) the horse muck piled in front of the entrance as we left so you had to stand in it did. Classless.
Old Trafford was bad, mainly because people build it up to be good, and the atmosphere is rubbish there.
Gotta say, I love the older stadiums. As a Bolton fan (so as a home ground) the reebok is pretty rubbish. Can be a decent atmosphere at times but the ground is soulless and filled with daytrippers most of the time. When you have been shushed at a football stadium you know it's bad. We've never recovered from the move.
Loved our trip to Moss Rose earlier in the season, proper terracing, proper ground, great day out.