I loved it!
I've just joined, so "hi" to you all.
I thought the film was excellent. I went to see Prometheus the day it came out and walked out the cinema thinking "WTF was that about?". I didn't hate Prometheus, but after getting it on Bluray (in 3D) it did start to grow on me.
As for AC, the film seemed to me as a sequal to Prometheus rather than a prequal to Alien. I know it had strange plot areas and people doing questionable things BUT so did Alien. In Alien, you have them go out into a derelict space craft and then one of the crew members looking into the egg. And then they got the guy back on the ship, observed a facehugger on his face and tried to get it off but then it fell off on it's own. After all of that, they invited him to dinner without ever asking what the purpose was of the thing hugging his face over the past few days.
Same thing with Aliens, the marines are sent into the Alien area and then told to disarm?? LOL...and also the wierdness of no-one noticing the huge Alien queen hitch a ride on the dropship.
Am sure a movie based on common sense would be rather boring.
Some people have complained about a certain person not being in the film, but as far as I was concerned that person featured quite heavily where required and I felt suitably informed about that person.
I am a fan of Alien, watched it a ton of times. And the same with Aliens too. I disliked Alien 3 and Alien R.
All in all, I thought it was a great film and was happy there was pointers to both Alien and Prometheus. However, I did think one early scene in particular was a hat tip to 2001 Space Odyssey.
thanks for reading and I hope I haven't given too much away