I know this post is a bit old but here's my two cents worth when it comes to mares. IMO, mares have a rep they don;t deserve, I've seen just as many moody geldings then mares. When it comes to mare ownership, what I noticed is that mares prefer soft handed, soft spoken people and love when you to spend time with them. Talking to her, brushing her, scratching her itchy spots, spoiling her with treats etc. Once you bond together it's a strong bond, that's what I noticed with mares is they bond with their 'owners' much stronger then their male counter parts do. I find mares bond better with you, a much stronger one, learn faster and are much smarter and problem solvers. Gypsy figured how to turn door knobs and open latches, untie ropes, just by watching me. She's always watching me to see what I'm doing and tries to mimic what I'm doing it's really cute IMO.
I have three mares my self and none are moody witches as people think they are, I've never had then mad at me just other horses, mostly when one tries to come near me(especially if it's another mare) even when there in-heat, Most of the time you can't even tell in some cases. Just that they become more lovey dovey and cuddle/nuzzely. Really the only issue I have is when Gypsy(the mare in my avatar) is in-heat, she must think I'm a hot stud or something cause she will show herself to me. She's a weird-o LOL, I realize she's a horse acting like a horse and see me as part of her herd. I just let her be, no harm is done just a mess to clean up sometimes. I let my girls roam the barn free when I'm down there, just one at a time cause there jealous of each other and want my attention all to their selfs. I'm flattered I have so many cute girls wanting my attention and do they get excited when they see me coming. Gypsy's window faces the driveway and when she see's my truck she starts to call out for me. If there in the field they all come running up to the gate.
Honestly I have yet to meet a mares I didn't get along with, even the ones who allegedly "hate men" I've gotten along with just find. Why that is who knows, just that I'm soft spoken and soft handed and treat horses with love and respect would be my best guess. Best thing to do is meet the horse and see if you can spend time with her. When it comes to horses I will only have mares in my life, I just get along so much better. yes I do know there are bad apples out there, but I find them few and far between.