The thor ragnork is the one best and fine sequel in recent times.
The plot, characters, cg works, editing, cinematography, music, direction department all are perfectly blended to make thor more awesome.
Especially the scenes bw thor and hulk made us laugh at loud and helen character is very well potrayed and mainly kudos to cg works which feels us like it is a real world.
Finally I say that these the best thor movie till date.