Out of our herd I definitely prefer the mares. Both mares are ten times more lively and energetic than any of our geldings. Our geldings are just "blah" like they lack personality. Our mares on the other hand have plenty of personality for everybody. By personality I don't mean attitude. Both of our mares are into everything and very curious. Both want to be with someone 24/7 they are good mounts and have a ton of get up and go. They will play with balls, buckets, chains on the gates (one undoes most latches she has come in contact with), stuff they like. They are entertaining. All our geldings are just there. They don't care whether you go get them out or not. They don't care what you do with them they are just "there" pretty much. My hubby only rides geldings. Every now and then he will go saddle up the TWH mare and ride but not often. My SSH he hates to ride
Actually, I have only every rode two geldings in the 15 years I have been riding. One I only rode once and then my app.