The only advantage to the PS4 version, if you have the PS4 camera that is, is that the game supports head tracking (for peeking) and noise recognition (so the Alien can react to noises coming from you IRL).
With the humans and androids, it's about learning their patterns, like in most stealth games - although I think maybe on Hard they have amazing line of sight which you may learn the hard way. With the Alien, its behaviour can be quite erratic, so there is an element of trial and error to it, but in a good way - as I understand it, when you die and reload, you can't guarantee that the Alien will be in the same places and behave in the same way. It keeps you on your toes.
I've been crouch walking any time I hear the Alien and avoiding it as much as I can and I haven't died at its hands yet (Hard difficulty btw). I've been playing with a 5.1 surround sound headset and it really makes a difference - I have a general idea of where the Alien is by listening out for thuds, hisses, rumbles etc. Watch out for Xeno drool coming from overhead vents. Don't run. Use your gadgets. From reading this thread I have come to realise that there have been many places where others have died that I didn't even know the Alien was around. Knowing that I could have died if I wasn't being so careful kinda scares me even more.