I have a lot of sunglasses. Had a lot of Oakley's, had a set of Maui Jim's I loved until they shattered in cold, been a Costa guy for a while now.
I have some thoughts on lenses.
Firstly, I love the green lens, I think it's their best. The amber base is just so easy to live with, appropriately dark, good contrast, good mirroring (nothing worse than see through sunglasses checking out the 00s and OOs). They're my favorite.
Blue lenses, I like for the boat but not much else. They just seem too bright for me. Good for glare reduction, but I don't like them for everyday use.
Silver mirror, I like overall. Similar to the greens, but they're a gray lens vs amber. I will use them for everyday use, but I prefer the greens. No complaints with them, just I prefer the amber lens.
Mirror Gold, I just got a pair as warranty replacements. I'm not impressed currently. They're designed with more VLT, but they're too bright and optically look weird to me. I've got.like, 5 minutes of use time with them though so my evaluation may change.
Thoughts on Oakley's... Why they gotta be so freaking weird? I still have a pair or two of Gascans, they're one of the few Oakley designs I would even wear. I can get the appeal of the visor types for athletics, but nearly all their other designs are just too weird. They've got probably 5-7 out of the like 100 frames they make I would wear. I don't find their lenses that great, they have nothing on the glass Costa lenses, or Maui lenses. I do appreciate the ability to custom build a set of sunglasses though. I'm just disappointed, metal Oakley's were my first set.of "nice" sunglasses, and if they made something nice and not too weird, I'd consider them again, but they're just not doing it for me anymore (maybe that's because 15-20 years has passed since I was a teenager and liked their styles?)
Cheapies... Never been a fan. I know there's lots of fast casual cheapies now, not quite throwaways on the rack, not quite nice. There's probably little difference between them and the nicer ones, sunglasses are like 80% margin or more, but most of them exist at a price point where I'd just as soon buy nicer ones. You wanna sell me a pair of nice quality sunglasses that are cheapie plus, it's gotta be like $20 shipped, preferably from Amazon and some sketchy website.