I have never owned a horse, but I volunteer at this horse shelter (kinda like a humane society for horses) and I like the geldings MUCH better then the mares...although they are all special in their own way. When the mares go into season they are usually real crabby, hard to get a halter on, and, depending on the mare, dangerous. We have some blind horses at the barn and one, named Solo, has horrible seasons! She won't calm down, she turns circles around her stall and when we turn her out to pasture, she's so charged that she will drag you...we have to take a couple steps forward and then turn her in a circle, and continue this process until we get to her pasture. And she's completely blind! I have fallen in love with a few horses there at the barn, and they all have been geldings...real sweet, beautiful geldings. I can't cut all the mares short tho, I have seen some very charming, gentle mares and not all of them get so nasty when they are in season. I guess just like in the case with women, some get terrible PMS, while others have very little sour effects of PMS. It all depends on your level of patience, I like a nice, easy, calm horse with a great attitude. Some like a more spirited, fiesty horse.