OK, I recently asked about horses and drogmores, the differences, etc. I didn't listen to everyone and bought the horse, because I thought it looked cool for my dwarf to be riding. Well, while it looked cool, the targetting problem is real and is a pain in the neck (horses neck..get it, hehe).
I ended up being told that I could sell my bridle back and get my money back...watch out for this one...you get far less. I had to save up to afford the droggie. But it was worth it. The med and no-sit agro advantage is great. I love it. He runs very slightly faster than a normal character runs. I bought the cheapest because that is what I could afford.
So, save yourself trouble and buy the droggie. Looks be damned, that horse head really does get in the way.