I've been following this thread with some interest, because I'm starting to clear about 2 acres with my 20
hp tractor. I realize that the older i get, the more I start to sound like my father, father-in-law, and grandfather, but here goes anyway-
How do you think your great grandfather cleared his land? he didn't have no bleepin' tractor or chainsaw!
The way I see, and it wasn't stated in the original question, was how much time are you willing to spend and how quickly do you want the land cleared? Speed costs money- that's the value of the mulchers.
In my case, the tractor is used to move material and remove the <3" stuff it can easily do. The bigger stumps will either wait until i get an excavator in or they rot.
Eventually the property will be the way i want it. This is how I enjoy spending the time I'n not earning money to pay the bills and the government. Doing it any other way would require money I'd rather have available for something else.