John,
I just went through the same decision as you're facing and I went with the BX2200, 60" MMM, FEL, 5ft. Woods rear balde.
My choice was based alot on overall tractor physical size. I wanted something with a low center of gravity due to a very steep bank that I mow and I was convinced that the BX would do everything that I wanted to do. It's very new (10.5 hrs on tractor) but so far I'm thrilled with it. The only thing that I would say is if the area you plan to clear is real uneven you do have limited ground clearance with the BX. I have 3.5 acres and mow about 1.5 but plan to make the yard larger now that I have my "babybota" to lessen the back strain.
Good luck,
Tazbota