Well, people who loved Aliens hated Alien 3, because of the killing. Just like Cameron said, it was a slap on the face. One that we haven't recovered from, yet. The studio owes us that.
I think most people have come around, not necessarily to like the killing of Hicks and Newt (though many do) but to at least accept it.
I was disapointed by it, but then, when I first watched the movie I was 13 and had already had negative internet reactions burnt into my head before going in. After putting it aside and revisiting it on my own terms, I'm actually really happy with the choices -- the ones that aren't dumb, like the egg's placement on the ship -- that went into Alien 3. Killing Hicks and Newt was absolutely necessary for the direction that the film went in. The film is very problematic in a lot of ways, but it also excels in a lot of ways in what it tries to do (it is bleak, depressing, and illuminated with only a faint glimmer of hope -- the ability to stop the Aliens once and for all -- at the end of the tunnel), and it excels in delivering that. On top of that the film is visually striking, dodgy Alien shots aside, and Weaver is perhaps at her best as Ripley in this installment.
I love the movie now, even with everything that is wrong with it. It is the only product that could have come out of the dire position that it was placed in from the moment it was announced, and I respect it for boldly doing something new and different and, even though it has it's problems and divided the audience, mostly excelling in what it set out to do.
That being said, it is, at the end of the day, a movie. A movie that, like the other entries, was put together by a different set of hands than the original, and the film that preceded it, and the film that succeeded it. That's what's made the series so interesting to watch with each installment. They've all blatantly been very different beasts, constructed from very different people going through very different creative processes. And now we're getting that again. And, for me at least, I really don't give a shit if it's a reboot or retcon or what have you. At the end of the day it's another movie, another set of hands, tackling the franchise and leaving his own mark on it. As long as it isn't blatantly "Aliens 2" and it has an identity of it's own it will at least be worth checking out. Hell, maybe it'll even be good. That's something worth hoping for.