V was pretty horrible, and I wouldn't wish it on anyone. I don't even know how to describe it, I'm too embarrassed to even describe the scenes.
VI is kind of a blur, I don't remember anything about it except Christopher Plummer was in it, I think.
Thor was a hard book to write, it's hard to make gods interesting. I think Walt Simonson did some of the best runs on it (both art and story), because he changed stuff up. For example, at one point Thor lost his hammer to an alien (Beta Ray Bill) who bested him in combat and became the new Thor. Later, Thor actually got turned into a frog, which was funny as hell. There was also a huge storyline where Surtur got loose and Odin had to stop him... with some pretty dire results.I really wanted to like the first movie, but if that's true to the comic, Thor sucks as a character, which made that difficult. He's everything people complain about when they complain about Superman, only it's actually true for him. He grew up as royalty, not an outsider, and is also, quite literally, a God. I rooted more for Loki, but he wasn't really that interesting, either.
Basically, Simonson solved the problem by putting Thor in situations where he was no longer "god-like" or was suffering humility within the storyline.
I know in the one dark Marvel future storyline (was it Civil Wars?), Reed Richards had the audacity to clone Thor and then plant a control device in the clone; it didn't work, and the freakin' Thor clone killed Giant Man unnecessarily in a fight scene. It was pretty crazy -- everyone was like, "Reed, wtf were you even thinking???" It's like these superheroes, with all the power they wield, end up making the same mistake the scientists made in creating the atom bomb. Just because you CAN do something doesn't mean you SHOULD.