I didn't even remembered Hulk slinging Loki around [emoji38] I would say that is a famous scene, not iconic. Iconic is the heroes circle shot. Iconic is Pratt riding with the raptors (and raising his hands to tame them early in the movie). Hulk punching Thor, big water dinosaur jumping, Hulk slinging Loki like a doll, T-Rex showing up at the end... all famous but not iconic scenes, IMO.
I don't feel like Pratt with the raptors is iconic... JW is not as popular here in Brasil tought.