I've heard that coconut oil is pretty good for you. I don't think that it's been widely tested though, so I'm a bit skeptical about it.
I've seen people advocate using it in everything, but it is basically a saturated fat. It's semi-solid at room temperature. It might have some good components, like capric acid, but if you eat loads of the stuff you might be affecting your heart as well as your blood sugar.
Until the jury is out, I'll continue to just use everything in moderation. That usually seems to be the best course anyway.