I like letting people take me down and using that momentum to slap then in an omaplata. Plus you can sub people with it or sweep them with it, or just control them. I also like all sorts of leg locks.
You shouldn't train leg locks, they are low percentage, and Chuck Lidell doesn't train them.

In all seriousness, I got an ezekiel choke tonight, don't train it much, but opportunity presented itself, I took it. I love cross body, so "circle of pain," far side armbar or kimura from north/south.