The Thor films are some of lowest one all around really. They have their fun moments.
Yeah, and out of the gate I figured Thor could be up for the lesser film rankings simply because of the magic junk. It's just too far removed from our world, and he's almost too powerful (being too powerful is one major problem I have with Superman, and one hurdle I feel like they will never tackle and get right with the current WB management) to really worry about Thor being in danger or at any real risk.
But I feel like the way they did it, by splitting up time on Asgard and Earth, and adding just enough human element that it stayed attached to our world, while giving Thor mythical/powerful gods to fight who could in theory best him (even if it's just combined powers overpowering him) is the reason that it's worked... but kept him in the crappier rankings.
But Marvel does genius, out-of-the-box shit, like get Kenneth Branagh to direct a Thor flick, and getting Sir Anthony Hopkins to be Odin, that makes up for even their weaker selections.
Getting a fairly-unknown, young-and-perhaps-risky actor to play Thor was a wise choice in casting for the overall haul with the lineup the MCU had on its plate, and then getting a seasoned star like Cumberbatch to play someone like Doctor Strange is some of the smartest casting I've seen for a franchise. He's already got a bit of a cult following, and he's a hell of a talent. And Strange is a third-stringer at best as far as the general public cares, but the name of the actor will draw in folks where the character itself wouldn't. And the performance will deliver, I have no doubt.
I think it'll be way better than either Thor film at the very least, due to several things. It's got a solid actor in the lead, along with strong supporting cast. It looks to tackle a new angle of the MCU (that Ant-Man treaded very-so-lightly into last fall but opened the door for Strange). It's already established that magic and other non-linear worlds exist and that this is all just "a science we don't understand" thanks to Thor and the Tesseract, Avengers, and GotG, and allows for a character rooted in the "real world" to really expand the Marvel Cinematic Universe into a much broader angle.
Really, I had my doubts early on that they could get the MCU as big as it is now, but after about a dozen films, I think they damn well know what the fuck they're doing, and they've handled storytelling and world-building at a smart pace. Unlike DC, cough.