I vote third for Worleys. They have a new trailer too for those that have not seen them in a while.
I have used them since the late 90's many times, and they have been wonderful folks and always delivered my horses, coming or going, in top shape. They treat them like their own. Not to mention, they actually communicate with their customers so you know what is going on and where they are and when they will arrive.
My neighbors had a horse shipped with one of the above mentioned haulers and it took at least THREE weeks to get from MI to AZ. Couldnt get hold of anyone to find out WHERE their horse was, etc.... and then they got no previous call to let them know it was arriving. Luckily they were home when they all showed up. Found out the horses were laid over at their place, but nobody told anybody that, while they get a load together to make the trip!