Ray-Bans good but wouldn't recommend the Wayfarers as the frame is quite thick and they can let bright sunlight in at the sides.
Revos v. good and preferred choice on a very sunny day although the mirrored finish might be a bit off-putting for people you are talking to.
I am to sunglasses as most women are to handbags; I can pick the appropriate pair for the conditions.
Glad you got rid of the aviators - unless "70s porn-star" is the image you wish to convey
Cheers
Whirlygig