I hate the movie, way more than 3. At least Alien 3 still feels like an Alien movie. A:R is like some mashed potatoes mess of God knows what. My reasons are:
1) The music. Compared to 1 thru 3's soundtracks, this one is forgettable.
2) Terrible script with horrid one liners.
3) The guy says, "Fury 16 on ice". It's not Fury 16 on ice. It's Fury 161.
4) That dreaded basketball scene. Makes no damn sense, and is pointless.
5) Stupid ass Marines who make stupid ass decisions
6) Chestburster that goes thru the dudes stomach at the end, and also goes thru the other dudes face. I mean, really!?! Really!?!?
7) Wynona Ryder
8 ) The character that was played by Ron Perlman was annoying and never once funny even though he was trying so hard to be. (Ron Perlman is awesome, just not in this movie).
9) The ladder scene after the water escape... Why in the world does the, up to this point bad ass black dude from CSI, decide to kill himself?!!? He got sprayed with acid a little bit, and then decides to cut his strap loose, give up on life, and die.
10) Shooting the spider.
11) The grenade tossing scene. From the grenade toss roll of awesomeness to the Alien jaw smashing the back of the Generals head and him starring at his brain is all utter stupidness.
12) The annoying ass scientist. Every single scene he is in is terrible! "OOooohh like a beautiful little butterfly." Stfu.
13) The Alien queen's newborn birth scene. And of course, the newborn. One of the stupidest creations I have ever seen.
14) The "look" of the film. All those browns and muted colors just didn't do it for me.
15) I especially hated the anamotronic Alien eggs. The cold hard look of the eggs from the first 3 films is gone in this film. Replaced by brownish eggs that breath and move and open and close back up again. Which brings me to...
16) Why the shit did the Aliens eggs close again when grenades fell into them!?!? Did the egg think to itself, "Oh, my facehugger has returned to me, I better close back up!?!?"
17) All the scenes where people shoot bullets off of walls and they ricochet perfectly to the designated target. Also that scene where grenades are perfectly shot off of walls to land inside of alien eggs.
18) The scene when Ripley rips out a RUBBER alien jaw... I mean, i know it's dead, but wtf!?!? In 3 previous movies it is pretty much established that the jaw is not a rubber tongue. Who knows, maybe the jaw is a mouth penis and gets turned on when it sees prey.
19) Back to the idiot scientist... "Oh no, the Aliens killed one of their own, and then escaped thru the floor, I better OPEN THE DOOR AND HAVE A LOOK SEE WHERE THEY WENT".... WTF?!
20) Basically the entire movie sucks.
In my opinion.