I didn't want to post but I saw way too many terrible threads offering terrible and incorrect sizing advice.

Peter Sagan uses a 140mm stem. Froome/Nibali on 120mm. The vast majority of the pro peleton are between 120-140mm stem. This is because they have science, and money and careers are on the line, and because weight distribution is massively important for control. So who do you think is right? You and your local LBS? Or the pro peleton, where careers and millions are at stake?

Yeah yeah they're pro athletes, so yes they are in great shape. For an older, out of shape overweight man, yeah, get the larger frame that's the right choice. But don't try to pass it off as being the "ideal" choice. No, ideally, you would be younger, fitter and lighter, and can ride the smaller frame with the 120-140mm stem. But you can't. Doesn't mean the thousands of people who search the internet for sizing advice can't.