This is straight forward. LD and AB will NOT take each other on in this race (or any race this year). They have PLENTY of horses that could fill the places. Ruby can only ride 1. IF they are both good enough to win this, it means one of them is likely to take a chance in the Neptune or AB. BAsed on what we've seen, LD is better over further, so Ruby will ride her in AB or Neptune .... whichever gives him the best chance of winning.
IF AB or LD are both in it, whichever Ruby picks will win. This is going to be one of the rock solid bankers, whichever RUby rides wins. Easy double with whatever he rides on day one in the Mares race. Easy. Boring. Easy.