I looked at the JD 2520 before I purchased the
B2920. I ran across some posts that a 2520 owner gave where he thought that the 2 speed HST on the JD was not very useful. Almost all the work that the JD owner did was in the lower gear range, and he felt that the upper gear range was so high that it was only useful for road travel.
Looking and working with my 2920, I think that the 3 speed has about the right range. High is useful for road travel. When the engine is running at the PTO speed, the tractor will do about 12-13mph traveling down the shoulder of our local road. I use BOTH the middle and lower ranges for work. In this regard I feel not that I have 3 gear ranges to 2 on the JD, but rather that I have 2 to 1.
The comment about the brakes on the JD vs the 2920 is quite correct, and the brake placement on the 2920 is very poor. However, I would like to point out that on a HST tractor, brake placement is much less important. I rarely use my brakes, as the HST braking does a very good job. The ONLY time in 3 years I tried to do selective left/right braking, was to see how it was done. I've never had a practical need to use it.
Position control (or lack there of) on the 2920 is a definite disadvantage. I usually have to bump the quarter inching valve back and forth to get the right height on a implement. Once set, the position will typically bleed down over 10 to 15 minutes, which means that I have to return to this. On most implements, this isn't that important. Carryall, nope. Tiller, nope. Bushhog, nope. Only on the blade do I have this issue. So yes, position control would be nice, but only occasionally of advantage (to me) over the quarter inching.
My main beef with the 2920 are that the FEL joystick is just a tad to close to my right knee. I always want to turn to the right to view behind me, which puts my knee often in contact with the FEL joystick. If only it was moved a inch further to the right.
Frankly, I think both are good tractors that would serve their owners well. As I put it to my wife, "I don't think that the tractor is worth what I'm paying for it over the period of the payments, but if I take good care of it and it lasts 20 years, then it will certainly pay for itself."
Larry