Doesn't use stamina when on 4 legs, collects berries as good as a trike and has quite good weight when upgraded (the level 55 I tamed had 750) reasonably fast allowing a perfect versatile travel mount. Id prefer this over a giga
Iguanadons are super slept on for their utility outside of making seeds. They hardly consume stamina when running on all fours, you can use your hotbar while riding them, and they're forever giving you moral support with their permanently fixed thumbs up 👍
They have a LOT of food capacity you barely have to feed them at great utility Dino CRAZY FAST, unlimited stamina, the previously mentioned food rate and their pretty decent attack on smaller dinos from about Compy to Raptor at base stats, make this guy (or girl) useful for everything! Did I mention they are great for agriculture they strip seeds out of berries great for planting! 4.5/5 tame also it looks great!!!
Iguanodon is a very useful dino. Its strong, fast, have a lot of stamina, can jump really high, can collect a ton of berries, can turn it to seeds, when u need, and poop for u big eggs. :D A must-have creature in the game.