Not experienced with the Big Mango, but only the Little Papaya and can only speak to it.
French restaurants/cuisne just seem to offer more of everything in every way. Most of the other ethnic restaurants such as German, Indian, Chinese, Russian, Arab, etc offer little to entice me. There are some British style restaurants that are attractive but no American restaurants that I am familiar with. So it is not just the cuisine but the whole package, ambiance, price, presentation, cute waiters,variety of food, quality of food, etc. And, unlike some French restaurants, no snotty waiters, although it seems there are some snotty owners both in the Mango and the Papaya.