Different doesn’t but not necessarily better.
In our case, as we don't drink alcohol, X's system is way better.
As Diamond + we would get 5 drinks a day.
As Elite+ we get unlimited non alcoholic speciality coffees (hot and iced), specialty teas and hot chocolate. Enough free bottled water between 5 and 7 to last the next day, plus sodas (ginger ale, tonics etc ) and fruit juices to take into dinner (picked up in the Passport Bar) and a Latte with dessert.