My vote goes to IH!

It's just like Hienz,,, there are no other kinds!!
We've used IH since my grandfather bought his first tractor in 1947. You just can't kill them. We've got a 384 with about 12000-15000 hours on it with the original clutch, and one new set of rings and bearings! That's what I call quality!!!!!
I also feel that the IH company backing is second to none, and when you plan to use a machine to make your living that is VERY important!!!