I've got some A-wires and C-wires. Like 'em. They look cool and fit well (adjustable nose pieces, temples, etc).
Oakley makes very good optics. And I haven't studied their product line...they may have "higher end" lenses than what come in A and C-wires. With that caveat in mind...
If you want to step up in terms of clarity and resolution, try the Maui Jim optics. It isn't so much the polarization (which is a legitimate benefit when there is much reflected light, particularly off water, e.g. fishing/water sports, etc) that makes then great, just clarity of the glass. And polarized lenses are a mixed bag... oversold, overrated in my book. They can completely block liquid crystal displays from your eyes (e.g. on my old cell phone, and some car stereo's. LCD's clearly use polarized light technology as their display medium), and I have tinted windows on my car that, along w/ polarized lenses, causes these freaky rainbow distortions. Kinda psychedelic ... Shagadelic Baby, yeeYAYahh (Austin Powers).
The top of the heap, up one notch even from Maui Jim, is Revo.. These lenses are just outrageously good. And they are priced that way (upper $100 to lower $200). You don't realize it so much trying them on in a shop....you notice it once you step outside and wear them for an hour or so... even more so over a few days, outdoors. It is hard to explain, but... optical purity is excellent, such that even though they are dark (only transmit say 6% of light), the resolution is so good I don't have to tilt them down to study detail say in the shadows. They can be "dark" and protective while not obfuscating detail. Resolution is th word...sharpness, clarity. All that.
By comparison, you can tell Oakley is not as pure. This is subtle, but the Oakley's just don't transmit the same resolution...they is subtle "scatter" that just kinda fuzzes up things compared to Revo.
Downside, Revo only has a few designs, not nearly so many cool ones as Oakley. For me, it's substance over style when I care how well I see outdoors (biking, fishing, vacations/touring, etc)... so I choose the Revo's in those conditions. Usually, the Oakley's are dandy and they look better (vanity and all).
I wear contacts from noon onward during the day, so wear shades w/ contacts.
But I wear my glasses in the morning, etc. If you wear regular glasses, try a new prescription with Zeiss lenses. They have a very high optical index, meaning they will bend light for high prescriptions with a thinner glass lens than others. More, they are like Revo's...just superduper clean, clear, sharp, resolution again. Best I've had, hands-down. German quality, and noticeably worth the extra dinero.
(that's me in my A-wires in the Avatar. Yeeeah, right
)
Had to send them back the service and warranty pretty often! 
