If you're going to buy one and keep it until the day you die, it's probably not going to make any difference, and I'd go with the one that is the most user friendly. However, I always buy equipment with the notion that if I ever want to sell or trade it, how will it's value hold up. You never know if that might happen, or not.
Of the ones you've listed, the JD and Kubota are the ones that fit that bill, with the edge going to Deere. Also, buy the biggest one you can afford, you won't regret it.
