Depending on the comfort of each and where you want to play. I often gamble with fiat when visiting local casinos, and when moving global I gamble with Crypto. There are several gambling sites that are banned in the country where I live, I will channel my hobby of gambling with fiat when the VPN connection is interrupted. If you ask the odds of winning, both have the same chance, both have a chance to win and both have a chance to lose, gambling is a game of luck, no one can guess when he will win. So just enjoy.