I like any and every submission I can get, with the requirement that it actually DOES something. Neck cranks in my opinion are stupid and almost useless (with some exceptions) because on the street... yea, they hurt... but then what? Bicep splices? Well, if you can actually detatch the muscle, (good luck). All they amount to is a painful position to hold someone for landing strikes, and I can do that anyway. I want to break something or choke something. Or pound something, but that only requires position, not submission.