But no video game characters are more iconic than Mario, Luigi, Princess Peach, Bowser, Yoshi, Link, Zelda, etc. This is isn't even counting other things from these games (Koopas, Goombas, bomb-ombs, shells, floating boxes, pipes, flowers, etc.) that are easily recognizable by anyone, at any age.
As far as video game characters and objects go, Nintendo holds the most "iconic". I'm not saying the land should be transformed at all, because I love Toon Lagoon, but if it were replaced by a video game franchise, Nintendo would be the best bet.