I can only speak of the difference between BE&A's and PG Classics. Both are manufactured by the same company in China. Both have markings on them, part numbers, RT/LH, etc...but ONLY the BE&A's have the all important Pentastar.
BE&A have spent thousands extra to get the license to put that little detail on there....
PG Classics sell the same part, no star, less money.
Classic Industries may sell ones with "original markings" but they may not include the Pentastar.
I think, BE&A are the only ones with that item licensed....I could be wrong though....