It’s personal preference. I like the blue, especially on bright days at the lake. They are a little dark when there is some cloud cover, and you fall into that situation where you can’t decide to leave them on or not. The green ones I had were pretty good on the water as well, especially looking into the shallow water. They were better on lower light days. My wife has the gray lenses in hers, and they are way better in lower light and still good in the sun. I have never looked thru them at the lake though.