What is the best io game in your opinion?

Wings.io - Massive multiplayer online game. Control your plane and shoot down other players!

Start as a mouse, eat other players and climb the food chain in this Agar.io alternative.

Slither.io is a multiplayer online video game. Players control an avatar resembling a worm, which consumes multicolored pellets, both from other players and ones that naturally spawn on the map in the game, to grow in size.