I wear the Oakley Livestrong if the sun is bright. Love em, but after a while they hurt my ears. I had a pair of Specialized ones that the LBS gave me a great deal on because they were being discontinued...I LOVED them but they died in a tragic crash (remember the bush incident?). Like my Rudy Project ones for the car.
Best Non-Cycling glasses? Maui Jim Kona. They cost an arm and a freaking leg, but they are very light, not too dark, not too light. I am very sensitive to stuff squeezing my head and I forget they are there. Now, if you sit on them, they bend and they never recover. If you drop them they bend and never recover. They are the Paris Hilton of sunglasses....expensive and high maintenance...but they are awesome. Sometimes findable on ebay.
I've worn the Maui Jims on the bike and they don't work, the lenses are too small. But they are very stylish to wear AFTER the bike, if you are into that sort of thing.