Ok then, this review is so very full of spoilers. So if you're reading this, you've seen the film!
Fassbender was excellent! He does creepy so very well and both David and Walter were wonderfully similar while being polar opposites. It was kind of obvious how it was going to end though and raised the first of my inner nerd questions. "How did David know to store embryos in the correctly sized/packaged way for loading to Covenant?"
From the moment David cut his hair, it was telegraphing the inevitable swap. Just saying.
Onto the rest of the cast. In an appropriate word, expendable. With the exception of Daniels, none of the rest of the crew engendered any feeling of empathy, even Tenessee. If a Xenomorph was headbutting the window in front of me, I'd be doing something a little more than saying "woah".
The rest of this rant will be my inner nerd screaming, I'd apologise, but I figure, if you're reading this, you're probably exactly the same as me.
David creates the Xenomorph from experiments with Neomorph DNA? Where the hell did he get the eggs from? Why did he take a backward step in creating facehuggers when the spore is a much better method of infection? We're expected to buy 10 years of backstory from a 2 minute clip? Bring out the extended edition or die in shame!
If Shaw was the one singing John Denver and piloting the ship, when/why/how did she rebuild David given that the ship they took from Prometheus was a different one from the ship David was decapitated on?!
Why did the newborn Xenomorph interact with David? Supposedly recognises him as creator? Bollox, it would have run or attacked him, not performed some sort of bullshit mime act.
And the final nail in the canonical coffin, yes we all know that Xenomorph maturation rates are pretty much as variable as you like, however, the one that pops in the med bay must have been on all kinds of shit to go from infant to full adult pretty much in the time in takes Daniels to get to the bay! The whole 3rd act felt rushed to me. Some great action sequences that should have been drawn out giving some time for the Alien to grow and start hunting and people to realise how screwed they are. Ripley spent the best part of 2 hours being terrorised by the original before finally blowing it out the airlock. Daniels goes from scared to murderous in 3 minutes and happily gets into close quarters with it to achieve the same effect......Massive lady balls or rushed story telling? You decide.
Oh and before I give this the inevitable thumbs up that you know are coming. Ya canny defy the laws of physics! Yes I know Xenomorphs are vacuum resistant but that bastard jumped through space (hard vacuum with no momentum) and managed to get back on the ship?! Bollox to you Einstein and Newton, what do you know? Silicon based lifeforms scoff at your assumptions on action/reaction. Air and multi ton equipment heading out to space? I shall simply use my strength, pointy claws and can do attitude to piss all over that! If only Ripley's alien had the same ability, I can only think he didn't want it enough.
Gripes aside, it's a bloody good romp and a worthy addition to the series. You knock Mr Scott at your peril and the man knows his stuff. I will be waiting for the extended or directors cut to prove my points, this film delivers atmosphere and scares for the newby and initiated alike. Supposedly sets up the sequel but seeing as the survivors are completely at David's mercy, that's a short and gory film!