Your local situation is really important.
Our nearest JD dealer is worthless. The Kubota, a little less so. Part of it is they rest on their laurels because so many people think they are better. Customer service is non-existent for small operations.
Remember, the high prices you pay up front are going to apply to parts and repairs, too. That's great if money isn't an issue.
If everything, except tractor features and quality were equal, I would get Yanmar. Their biggest HP is 59, so that may not work.