Polarized is really the only way to go in sunglasses.
My wife and I have worn costa del mar for probably 12 years. Their glass lens is probably the best optic you can find in eyewear. We use their poly lens for hiking and biking, glass lens for fishing and driving. I will have shades on at all times when I am outside in daytime hours. The warranty is lifetime and they have great customer service. I just sent them two pairs of glasses for warranty and they are sending me new ones since mine are no longer made.
My son wears smith glasses and they are also pretty nice, he gets them free so they are real nice in my books......
I have tried mauis, electrics, rayban and various others through the years.... I always end up back in costas.