Joyce,
I echo all the other posters on the board. Pick the machine you and you alone are most comfortable with because after all you will be the one plucking down the cash and using the tractor. All the big 3 are good tractors, I choose the Kubota, for the following reasons:
1) The HST was much smoother
2) The dealer was good and closest to my home
3) The price was the best.
Bottom line I am very happy with my puchase, 36 hours to date my neighbor bought a JD 955 and my other neighbor bought a NH 25D, all have performed well, at least we keep the neighbor-hood a nice rainbow color. Good luck with your search and future purchase. As for the issue of this site, I work full time and find it quite relaxing to read the post, sort of my deisel therapy without getting on the tractor.
Have fun and keep us all informed on your decision.
Crown.