In reply to kingjam: Lifted this from here
http://www.mountainguide.com/blog/
Carbon Fiber Black Diamond Cobra: These are beautifully crafted tools. The combination of carbon fiber and metal looks like something that the Apple design team dreamed up while under the watchful eye of Steve Jobs. The elegant curve is for more then just show it gives plenty of clearance allowing to place the well back into pockets and behind or between icicles. Locations that are more receptive to the violence of an invasive ice pick. On the head you have the option to place an adze or a hammer. If your using these as a alpine tool then I suggest getting a adze and hammer. Who uses a adze you may be wondering. Well alpine climbers. In the pure water and dry tooling arenas a adze has no real value. Shovel your way through a cornice and need that purchasing power because your pick just keeps ripping through the the hard pack snow. Flip your tool upside down and dig in with the wide blade of the adze. This is an extremely common situation in the technical mountaineering world. These tool have great balance and weight. They are fairly light weighing in at 617gm with the adze. This is light enough that you would consider it for high altitude technical mountaineering. The spike at the end is effectual enough that walking with the head in hand there is little worry of the spike slipping out from under you in anything but the most bullet proof of ice conditions. There are screws on the backside in case you want to set up a pair of Android leashes. Leashes still have a place out there in the real world.
If your guessing that I like these tools you’d be guessing right.
Petzl Quark
Petzl Quark: This is another favourite tool of the technical alpinist is this Petzl Quark. It doesn’t have the brilliant design finish of the Cobra but is rugged and and has excellent balance. I am surprised at how many ice climbers are hanging onto these things for dear life. Its like they are holding onto a cherished memory and if they let go that memory will fade. This tool is pretty much the same tool as the BD Cobra just without the carbon fiber.
The thing is that 5 or 6 companies build a tool of this sort and really it is just a matter of personal preference. My guess is that there may be a fair number of this generation of tool for sale for the next few years at least.