I run a TR88 at work. Grandpa has a 9400 Deere. Not the combines you asked for but the 88 is the same design as the 96 and the 9400 is the same design as the 9600. There's a reason the TR96 is so cheap. Cause in my opinion there built cheap. The Tin is thin and wears alot. I'd go with the JD. The New Holland being a rotary should be able to run longer hours but I think the 9600 is built better.