I would vote 'I like it', but not 'til we get an official answer as to why the legs were changed.
The closest we've got so far is "it was clear that the man-in-a-suit look wasn't going to work for us". Well, that doesn't work for me - this isn't a film where everything's begin done in-camera, it's a computer game where there are any number of animation tricks they could utilize to make the Alien look less man-in-a-suit.
I don't hate the new design - it's still far and away the best-looking Alien I've seen in a game. But until we get a specific, official answer regarding the changes, I can't make myself take a side.