Have to agree with the majority of posts here....Serengeties for me!! Paid around $65 for them so not expensive....
I have tried the rest, 2 pairs of randolphs.....good but grey lenses don't seem to enhance your view.
Raybans..well just a bit too big for my head .....
Serengetis......undoubtedly one fo the best lenses around...even helps to wear them when the weather is pretty damn poor..seem to cut through all that crap outside ....AND ...enhance instrumentation and colours.
Cloudmasters.also excellent but little known....
Suntigers...fantastic....however colours are completely altered and if you want to look daft buy a set ( Bright orange lenses). Hope this helps!!