@ Mag - I didn't list Ixtapa because I thought that place, although extremely beautiful, to be a bit desolate/isolated, no? From the pictures I saw the place looks really small and cozy but doesn't seem to offer much in terms of activity, shopping, massive hotels, etc. (what my woman likes).
Yeah...I guess you are right. It is not as big as the other places on your list. Its more of a beautiful, relaxing, location. At least...it was when I last went there. Yikes! It was almost 10 years ago!
In that case.......if you want something more city/busy stuff...then I would vote Puerto Vallarta.