If I was getting just one pair I would get copper-colored lens.  I do own a pair of Costas 580g in green mirror for fishing the very clear water I experience in the Great Lakes.  My everyday driving glasses are Suncloud copper lens polarized glasses.  I wear these often for fishing and they are excellent.  For around $50 they are a great value.  The Costas are definitely better but not 3X better.  While I do think Costas are overpriced, I did just ask for a pair of yellow-mirrored low-light Costas from my wife for Christmas.  (she always wants gift ideas)

Costas just went on sale this morning at Academy for 50% off.