I voted for Chocolatito, even though he is the older and they say that he is already past his prime, but if you put a fighter like Estrada in front of him (his rival), for sure it will bring the best out of him again.
Yes, I do agree that the fight is controversial, specially the 1st one, and so obviously they needed a 3rd fight to settle down the score. Chocolatito is the harder puncher for me and as the rounds go further, we will see him out punch Estrada in terms of volume, so this will end on the card and Chocolatito with majority or split decision win.