Originally Posted by Bren
Simply a way of Hulk showing BW how sorry he was about earlier, "See, Hulk smash puny God who called you mewling quim in flying boat".
That was the sole reason for that scene. Nothing about it being just about the most hilarious thing to watch, and showing the end of Loki as a threat.
Also it was revenge for Hulk, seeing as Loki had been taunting him throughout the movie.
"The monster who makes play he's still a man" and all that.
Originally Posted by LeXcalibur
Strength Level: Loki possesses the normal strength of an Asgardian male of his age, height, and build.
That's the comics, not the movies. And the average Asgardian is in the class 50 range in terms of strength. Thor is class 100 and beyond.