I would recommend you consider a tractor for all the potential jobs you may do in the future.
While a 2 WD tractor may do what you want now (bush hog), there will probably be other tasks that it may not do so well (FEL and ground engagement). I have a 770 with 24 HP, 20 PTO with MFWD and loaded tires. With a 4' rotary cutter, and the FEL and me it weights around 3,700+ pounds. I have plenty of HP, and can bushhog my mostly flat lot in 2 WD. If the grass/weeds are tall and a little wet, I have traction problems on tight turns and on a few berms I have to climb.
Like I said, HP is not the problem. I run out of traction before HP. That's with R4 Industrial tires. I'm not saying it's this tractor's problem, most posters here, regardless of tractor, will tell you the same thing.
If all you want to do is bush hog, those tractors may be OK. If you plan on the dozens of other uses for a tractor they may not be.
If a more expensive tractor (4 X 4) is not in the budget now, you might want to hire out the bush hog job now or rent a tractor with a bush hog or flail mower and get a feel for what a tractor can do and what you want it to do.
What you rent will probably be a larger tractor than the two above.
As far as the relative value/price on those tractors, a lot has to do with where you are living. Tractor's seem cheaper in Texas compared to the California coast. People in New England complain that they are expensive there. If you add some City/State info to your BIO, you might get other's to respond with more meaningful info.
Good luck and let us know what you do.
Joe