Well, the cryptocurrency that I mostly used when gambling is bitcoin, well actually that will be the cryptocurrency that will be used by the others if they really want to earn more money in gambling because as far as I know, the higher that value you bet then the higher the reward you may have if you win.
So if you are strong enough and you are believing that can win in gambling then you should use bitcoin to make more money. There is so big differences when you use other cryptocurrency because as we all know there is so big difference between the price of the bitcoin to the price of other cryptocurrency.