I've read several times on there forums that got planets produce more crystal and cold nods produce more deut. The thing is...well they don't. Most of my worlds are equally developed with exactly the same levels in all the mines, and they all produce exactly the same amount of crystal per hour. My colder planets do indeed produce more deut, but my hottest planet produces the same crystal as my coldest. Is it just me or has anyone else found this to be the case?

I found the same results as well. My hottest planet produces the same amount of crystal as my coldest planet. I dunno about the Deut though because their at different levels on all my planets.

The benefit of a hotter planet is higher energy outputs of solar satellites. (confirmed)
I dunno about crystals.