Actually, if you read the negative reviews they all have a beef with the 48fps and pacing. There is no "acting is horrible" and "the movie sucks". Going by this the movie is probably going to be loved by LOTR fans. Almost all the fan reactions have been very positive, while as you say, a lot of the critics compare it to LOTR. And I seriously doubt the final verdict will be rotten. I'm guessing it's going to settle between 70-75 or so.