I liked A3, and I'm so glad we didn't have to deal with a stupid kid running around, getting into trouble, and needing to be rescued (again).
I'll echo a previous poster that if Alien 3 had been the second movie it would have been better received. I still prefer it over Aliens (which is a good movie, but I prefer the horror movie of A1 and A3 over the action movie that is Aliens)
Regardless, I'm looking forward to the prequel, especially with a respectable director on board (who also should have some personal attachment to the franchise). Hopefully the studios don't get too involved and dumb it down to a PG-13 or insist on some stupid AVP-like human/alien buddy movie.