Not sure if these would matter to you but they would be things I would look at.
1. Do they have a quick attack/detach loader or not I get tired of carring it around when not needed.
2. Do they have the quick attack bucket at least, in case you would want different attachments in the future make note that the JD would have their own style QH that only their own equipment works on which cost more.
3. Do you or do you not need the little bit of extra HP that the NH and the Max have. I guess the max is to far away right.
4. Do all of the dealers have a good reputation or is one better.
5. Look into the drive over mower on the JD, I think I remember there being a thread on here about there being some kind of issue I can't remember what it was just something I saw mentioned it may be a complete non issue but it never hurts to ask. (side note I do not have any problem what so ever with JD my uncle has several of them they are good tractors just remember seeing something)
6. Also what color do you like the best, take that any way you want either the manufacturer or simply the color of the tractor because lets face it they are all really good trtactors!