We call drunken Arnold Palmers a John Daly! I love them too!
What we drink greatly depends on the casino we are at since some definitely have better beverages than others. In Vegas we order more martinis and mudslides but keep our drink orders simple in Atlantic City and CT casinos.
We may start with a vodka and soda or lemon drop martinis, then typically switch to bottles of Heineken. If I'm smart, I get a water with each cocktail, lol!