Typically (and this includes institutional derivatives products) if a derivative product is designed primarily for speculation, it's a scam. Derivative markets really only work if there is real risk transference, that is someone is trading a derivative to hedge a risk and someone else is trading the derivative to take on that risk premium for profit. No one uses binary options to hedge. It's all gamblers and speculators against a "market maker." Thus it's a BS product.
He hires government workers on 10 year contracts, gives them free houses and limo's for valentine's day.
I trade CL, I like it the best only because of the crazy moves it has. I would really like to trade ZN, only because there appears to be so much volume on the options. Other than that CL is pretty much the best mover during the day. I would go ES after that.