That's an interesting point about the emergency latch. I'm not sure if it's universally true, but it's interesting nonetheless. Clockwise is more natural for me personally, and I'm right handed. I feel like I would want to scew the latch out of the plane (like pushing out a car door), not into the plane. So, clockwise feels right to me.

Anyway, I'd prefer if the emergency door is slightly UNNATURAL if that un-naturalness prevents just one accidental, or even intentional, opening.