I prefer AvP's Aliens over AR as well.
I'm talking AvP vs. Alien/Aliens. The AR-AvPR chests are more human, despite them trying to raise the sternum to make the rest of the design look skinner, by having floating ribs attaching to the sternum, as opposed to Alien/Aliens, where all the ribs joined directly to it, with tubes visible directly behind them. The dog-legs do look less human, but that hardly makes up for all the translucency, tubing, condom lips and wires of the original design.
...so how 'bout them ADI Preds?