I'm a 5'10" guy with a massive tool, but I might be one of the remaining singles of my entire group of friends. Exaggerated cock size really have turned away most of the potential partners in my case, which is quite understandable. My last lady was sadomasochistic and a size queen, who, as someone here has pointed out, is a rare thing, just as being too huge is also a pretty rare thing. Apart from her fetiche, she was very homey and quiet, and really pleasant to be with. I'm also a very chilled out guy, who prefers a quieter lifestyle. I'm also a gym rat, which also is a niche where some women don't like, buffed guys and so on.
From my point of view, all my friends who are now couples have found partners with similar heights. The tallest of them have found taller women. I don't recall any exception, except one of my brothers-in-law, who happens to be almost as short as one of my sisters, although he is seven years younger. My friends who were considerable high above average regarding cock size were also the ones who got fewer relationships (either casual or serious ones) in comparison to the ones within the average/large spectrum.
As my preference for women, they must look ... authentic (specially their smile), healthy (at least doing some physical activity daily), no smoking addiction, and the height, I should say that those who had wider hips, also coincidentally were taller than others, have had the best match, but I would prefer one that's marginally similar in height than myself, and also similar age (40s).