That's a tough one Ryan. I don't know if I've been around enough farm animals to decide.
As you know, I'm getting goats soon...... and really looking forward to it. I think baby goats are about the cutest things ever! I love the noises they make, and goats definately have a different kind of personality.
But one farm animal I have a lot of respect for is a mule. They can be stubborn, but I found that every time the one's I dealt with got stubborn, it was for a very good reason. Mules never do anything stupid or without reason. I used mules when doing volunteer work for the wyoming forest services as a kid, and they amazed me. They were slow, but that was ok because they never got lost. They could SMELL the trail that the horses had let. We were in the middle of nowhere (just me at 17 and two mules) - no marked trail - the mules got left behind because of slowness - and those mules used there noses to follow the horses. Also, they were the last to cross a creek. The horses would just trod right on, stumbling over rocks in the water. Nearly falling on their faces or breaking a leg. But the mules waited until the water was clear of cloudy mud, and actually looked where they put their feet. Each step was that way, but it made me feel confident that I was on a smart animal that would keep me safe.