"On a good day a mare will beat a gelding in her work every time, on a bad day, they might be a handful. You have to know how to convince them not to have a bad day."
Oh well...some days I have to convince myself not to have a bad day. : )
I really think it just depends on the individual, although geldings do seem more "consistant" overall. But for the past many years mares have been my riding partners, It has just worked out that way. I have a Paint and an Arab-X. The 21 year old Arab-X is the horse that I have learned the most from and is the one who will break my heart when she passes on. She is my all-time favorite. But she can be a corker in season. The Paint is a newcomer and a mellow soul but still a bit girlie at times. I guess my answer to your question is I seem to have a preference for mares...moods and all.
If you ever find yourself in a fair fight, it's because your tactics suck. ~ Marine 1SGT J. Reifinger