As an ex new englander I approve of y’all over youse because it’s hard to use “youse” efficiently without saying “youse guys”.
"What do youse want to do?" <= you're from the NY/Phila/I-95 axis
"What do youse guys want to do?" <= you've some exposure to American dialects
"What do y'all want to do?" <= you're an American or playing one in a movie