So, I'm just going to post the text of a quick conversation I just had with my friend Matoyak because, frankly, I have far more questions about the Cosmere than answers and I think THIS question is fascinating.
Kelvin: Oh boy do I hope Endowment is female.
Matoyak: Because of the name?
Kelvin: And the jokes that go with it. And the whole gender stereotypes that I know Sanderson would never do on purpose. But I think Cultivation is female. (which is what you would expect) and all the other shards are gender neutral. Preservation, Devotion, Ruin, Dominion, Honor. Those could go to anybody. It would be nice if Endowment was female to make the point that which shard you got was random.
(Unless maybe it wasn't and they CHOSE their shards. But if Ati was the nice guy Hoid seems to think he was, he would never choose Ruin).
Matoyak: Unless he didn't want someone else to be turned by it.
Kelvin: I have a feeling these people were just standing too close to Adonalsium when it shattered and they got hit with different shards
Matoyak: Or they didn't understand what the shards would do to them. Or maybe Ati thought he was strong enough to handle it?
Kelvin: Perhaps Ati got to pick last. Rayse would choose Odium if he could. It could be argued that Aona, Leras, Skai and Tanavast all chose shards that would suit their personalities. So, if Ati got what was left over...