The ratings are lists of players who are exceptional in certain areas: experience, luxury, wealth, and achievements. Best your peers and get to the top!

Whoever has the most gold coins is first in the Richest Players rating.
The Most Luxurious ranks players according to who has built the poshest constructions and who has the most highly upgraded buildings on their Island.
The Most Experienced ranking is for players who have the greatest number of experience points. Level up to win your place in the ranking.
The Master of Achievements players get the highest ranks in the Master of Achievements category. Whenever you get an achievement, you earn achievement points; the more achievement points you get, the higher your ranking is.
The ranking of the friendliest players shows players that provided the most assistance to their friends. Find new friends, help them on their Islands, and very soon you’ll be at the top of this list!