Size doesnt really matter on cockfighting but rather would be entirely depending on how that rooster had been trained off plus having that good body condition.I dont know on how these cock trainers do train out their cocks but its true that luck would be always take up a huge factor on determining the winner of the said fight.
In a fighting cocks size does matter because they can hit harder, just like in boxing, bigger cocks can kill their opponent in one go since they hit harder and can pierce the opponent deeper or cut through the flesh of their opponent easily. I believe this is another reason why the cocks are paired according to weight[1].
We know that lucky hits could happen specially on a cockfight game where blades had been used into their feet and on the time that they do fight then we
cant really guarantee on whose gonna win.
True, it is a matter of luck and skill of the rooster.
This is what makes those bettors really been thrilled when making up these kind of bets which some people do discriminate nor having negative
impressions because of that animal cruelty thing.
No, I think the bloodbath scene makes the bettor thrilled about this kind of gambling. If they wanted excitement, slots game gives more variety of results and are specifically based on luck. I think it is the scene of watching two cocks fight to the death that makes them thrilled.
[1]
http://www.stuartxchange.org/Sabong