The Court of Appeals heard arguments Tuesday from the attorneys for Martin Heidgen, Taliyah Taylor and Franklin McPherson.
Heidgen killed a limousine driver and a 7-year-old passenger in a wrong-way crash on Long Island's Meadowbrook State Parkway in 2005. His blood alcohol content was 0.28 percent.
Taylor sped 80 mph down a Staten Island street without headlights, ran a red light and killed a pedestrian. She had taken Ecstasy, smoked marijuana and drank beer.
McPherson drove the wrong way on Long Island's Southern State Parkway in 2007 and killed another driver. His BAC was 0.19 percent.
Rulings are expected next month.