About rulers and ruled. Those who don't like God go to Hell to hang out with Beelzebub, but those who do like and follow God will get to rule with him.
Here is the problem with that;
Those who don't like God are either in Hell, or, if the Hosts of Light win in the Final Fight Scene, they are simply vanquished out of reality alltogether, along with those fallen angels and gogs and magogs who were somehow not planned for by the all powerful white God of America.
That means you will a.) be ruling over an empty kingdom, or b.) (As previously stated) not in a kingdom at all, more like a democracy. I cannot find a precedent for God being pro-democracy. He's never held a vote about any of his laws. This would lead me to believe that you won't be ruling alongside God, you'll be ruled BY God, and if the Mormon version of heaven is valid (Mind numbingly dull), I think I'd prefer to be vanquished from reality.
If Jesus and God are one, as many Christian mytholigies allude to and many nuts on the internet flat out assert, then in sending himself to Earth to die, God committed suicide, a Cardinal sin barring him from heaven. Even if they are not the same person, Jesus did not take steps to avoid his death, which by Catholic lore
means he committed suicide, barring him from heaven. From this we can see that either a.) Jesus and/or God are ebing tended to by a delighted Devil in Hell, or b.) God, whose image we were made in, and his Son, who is often depicted as suspiciously white, do not follow God's own laws, or c.) The Catholics are full of exrement, or, the most tempting option, d.) You're all full of it.