I rode both. I had a mare who was really mad when she was in season. But the one I have now is great I can't tell.
It depends on what you want. If you want a more chilled ride definatly go for a relaxed gelding. If you want more of a challenging ride go for a mare that is quite challenging 😆
I truly think it is entirely preference. I've known people who only ride geldings, people who only ride mares, and people who have no preference. From my experience, I've ridden all mares and have not had any problems when they are in season. In my opinion, I would base it off of the horse itself and which individual horse you feel most comfortable on.
I think if the horse is working for you and doing what you need keep it on. I've have 2 mares atm and when they go in season I just do my best to keep everything normal, they are working for me atm so I have no reason to change it up. Hope this helps ☺️