There was a similar thing my friend done (its in russian though), with some insights he managed to dig from a lot of testing and digging the internals.
Hey, you are friends with WilsonPercival too! He has done a lot for C3, but you should take some his findings and suggestions with a grain of salt, though. For instance, I really don't like his idea of using "Wait for previous action to complete" instead of "Wait 0". Just because it works doesn't mean it's correct.
I agree that a community-driven list of Best Practices would be a great idea, but ideally we'd need Scirra's involvement (for moderation and guidance) to keep it accurate and prevent risky guesswork.