Me personally, I'm staying on my iOS 5 untethered jailbreaks until all bombs are dropped, meaning all updates are made, everything is stable, I get the hang of what iOS 6 jailbreak is using and doing to the device before I upgrade my current iOS 5 devices to iOS 6. That's just me. Some users just want the iOS 6 jailbreak since there have been cases of battery lives being a lot better than iOS 6, but I don't see much of a difference if at all on any of my devices. Remember that once the iOS 6 jailbreak drops, there won't be 100% immediate support for many apps, so double check that the apps that you want to use are updated for iOS 6 before you commit.