I vote for HH, as generally it ages more beautifully then GS. The GS of the jackets I have seems bullitproof and lasts forever, or so it seems, and it looks more or less unworn, except for the creasing on the sleeves.
A prime example of how HH can age is my ELC Werber, which looks fantastic after a year and a half of non continuous wear. My GW GS Dubow looks new, even after wearing it for some months almost continuously. But then again I have an ELC Roughwear 1401 in HH that doesn't get any character, no matter how hard I wear it. Even the sleeves don't crease, it seems to be made of some sort of rubber (and I'm not into that)