Yes I don't think the atmosphere at a packed Goldstone will ever be matched at the Amex. Its almost too nice and sterile, plus the fact there were far more songs sung at the Goldstone. Its a great stadium nonetheless.
Very occasionally a part of the ground other than the north stand would join in but it was very very rare. Too many rose tinted specs being worn here. Give me the Amex any day over the Goldstone.