Bad Teacher: I was expecting this movie to be completely awful. Turned out to be kind of ok. Not anything I'd rave about but it did get me to laugh a few times and wasn't as brainlessly moronic as I was expecting so...success?
Thor Dark World: I think I agree with most that the movie in the first half is only sort of ok. Doesn't really do anything wrong, but it feels like it's trying to get through the plot ASAP so we can get to the action. Not so much rushed as much as doesn't let itself breathe.
The 2nd half, when actual action and stuff happens, of course is fun stuff.
Dunno if I consider it better than the first or not, but it's decent enough. It's not as good as Iron Man 3, no, but then Iron Man 3 felt like it was it's own self contained finale so it had to be great, while THor 2 definitely feels like it was made as a "hold over until Avengers 2", so it being "decent fun" is all it needs to be.
Also, first post credit scene...well, can't say I expected that character. I knew he was going to be in GotG (well, more like was told, forgot, then when I heard I was like "oh, right, they mentioned he's going to be there!"), but still nice to see an unexpected face. It is nice to get an idea of what GotG is going to look like at least.