I looked at several of these on the map and it appears that the new ones used the same builder, lol. The fields look the same, just different colors, names, and mascots.Tthe homestands and press boxes look the same. The differences are whether or not they have the track going around the football field, making it oval, or no track, making it rectangular. Also, the size of the visitor's side stands, the style of scoreboard, and probably a bigee, the placement and style of the concession and restrooms. The surrounding area makes a difference too, with those that have a scenic background being more aesthetically pleasing.