Pure for me. Great tweaks when you JB but I missed the stability of pure after a few weeks of JB. The constant reprings were giving me Android flashbacks.
Jailbroken. It doesn't respring often enough for it to be annoying. Jailbroke in order to get the os7revive theme then installed a bunch of tweaks to make tasks faster & more accessible. My upgrade this year will only be ios 6, & a new theme called paragon that'll give me the windows phone 8 start screen. Best of both companies.
It's taken me a lot of time to figure out which tweaks are buggy and which tweaks work properly. I jailbreak and always will until iOS has all the features I need stock. I don't have battery life issues, lag, random app crashes and it's been like this for many months. Freedom is about the ability to take your own risks and make your own mistakes. I agree security is important but sacrificing freedom over security is wrong.