3) Winning?

This one I struggled with. I didn't think that far when I created this nebulous creation. After some thought, I realized that this answer is simple, at least, in its essence.

These are Gods. Do you think they really care which of the ants that survive win? Not really. Some will care more about certain kinds of people more than others. But as a whole, and in regards to the end, no, they don't. Their goal is to to fix the balance by taking out what they can without completely destroying the whole. It's like a tower of bricks where you slowly extract as many pieces as you can WITHOUT making it fall. At the end of this arc, Aizen won't be defeated. Sorry~ That's your job. The Gods' goal is to fix the imbalance.

When we get closer to the end, or I see that you are getting tired, I'll consider winning scenarios some more.