My thoughts exactly on McCormicks. I didnt think about the loaders being different either. I have also been trying to get some seat time in a LS 4047 HST. The closest dealer doesnt have a HST. Wanted to see the layout as well as how much whine there is. TSO you happy with yours?
Very happy with mine. My shopping came down to a Kioti DK40/45/50 vs the LS R4041/47. I had a smaller Kioti before (ck20). It was a good tractor. Had a couple issues that were fixed under warranty.
There were things that I liked about both of the tractors. The Kioti loader lifts 123 pounds more to full height, but the LS loader has more low-end grunt ... breakout force is 627 pounds more on the LS. There have been a few times where the extra height would have been nice (Kioti loader lifts 11" higher) but I use the extra breakout force every time. But, I don't know the specs of the McCormick loader, it might be better than the other two, I don't have the specs in front of me.
The Kioti operators area was a bit more spacious. Some of the controls of each tractor were in better or worse spots than the other (just personal preference). I obviously went with the LS, but it could have easily gone the other way. I'm very happy with mine though ... no problems yet, although it's only been about 130 hours. There doesn't seem to be many (hard to find them) problems with the LS tractors. You can try to check the other forums (New Holland Boomer 35/40/50 and Case Farmall 35b/40b/50b are the same tractor) but there just haven't been many problems reported.
Go sit on them and drive them both. That's what helped me make my decision. As for HST whine, I didn't notice if one was better or worse, but I was used to HST whine from my CK20 so maybe I just didn't pay attention. Now that I think about it, I don't really notice HST whine in this LS unless I'm in High gear. But, I'm almost never in H, so it's never present.
Good luck! There's other good tractors worth comparing too. Check out the Kubota
L4240/4740, their MX4700/5100, and the Mahindra 4035.