It amazes me now to say it, as I have always loved geldings, but I'd have to go with a mare. We started with two geldings, and have some how, over the years, ended up with five mares and only the one poor gelding to deal with them all. I have just found, that although mares can be tempermental and moody(we have been blessed with four sweethearts, only one witch, lol.) once you find that special bond with them, they will try their hearts out for you and sometimes they just have that extra special spark that makes them amazing.