Been flying in the tropics for a decade, lots of sun and glare here. Strongly prefer Ray-Bans, can't read the model number but it is the "outdoorsman" with gold frames, sweat bar, and 58mm lenses.
I don't like glasses that "wrap around" too much, as I am dual rated and don't like to lose my peripheral vision at all in helicopters when hovering. Neither do I like my US military issue shades, since (at least on me) they fall off when I'm looking down and around during the preflight.
My sweat corrodes two or three pairs of Ray Bans a year, but I figure it's just a cost of professional flying. To me, Ray Bans are to sunglasses what David Clark is to headsets (remember those?). Not cheap, not flashy, maybe not even fashionable in some circles, but they've endured for a reason.
Aw, heck, it's all subjective, I'm just giving you my *personal* opinion.