I've always liked the Alien franchise, even Alien3 and Alien: Resurrection. Prometheus, unfortunately, showed me only one thing: Ridley Scott isn't capable of adapting to the times as a director. I found Prometheus to be just... bad, all around: none of the characters interested me in the slightest, the story wasn't up to snuff (honestly, Aliens should be the benchmark by which the story should be judged, because Cameron truly upped the ante), and more often than not, I was simply bored throughout the entire movie. Alien: Covenant looks to be more of the same, and worse is that it's blocking Alien 5 (where Ripley, Hicks and Newt were supposed to actually be alive and show that Alien3 and Resurrection were just bad cryosleep nightmares).
Now, don't get me wrong: I respect what Ridley Scott has done, particularly in giving us Alien to begin with. But Prometheus, to me, is like what many fans seem to think of the prequel trilogy for Star Wars. You know it's bad, though, when I view Prometheus so poorly that I have zero interest in looking at the trailers.