I love my TC24D, it has become my favorite tractor, largely because I like the FEL. The FEL is totally awesome, great strength, and amazing visibility.
NH loader visibility comparison photo
However, for 14 acres, it might be a little small for you. Also, given your hills being steep, the TC is narrow (it is 48" wide), I might seriously consider something a bit bigger, the Kubota
B2910 is another 6" wider than the TC24, the seat sits at the same height, so the center of gravity is right about the same but the tractor is wider so it should be more stable. Most tractor brands with R4 tires will not allow wheel width adjustment like the old AG tractors did. The trick is to find a tractor that is wide, but with a lot of weight high up above the rear axle, you also want the weight BETWEEN the axles rather than extending too far forward in front of the axles. (sort of like a Jeep CJ, wide with the weight centered). You might want to SERIOUSLY consider the Power Trac tractors (about 30hp) their tractors climb like goats and will handle side slopes that will easily roll over a regular tractor.
The TC24 has about 19 pto HP, that is about perfect for a 4' bush hog and a 5' finish mower. If the bush hogging is limited to prairie grasses with no woody stock, you could possibly go up to a 5' unit, but that would be marginal. By the way the TC24 is being replaced by the TC26, however it still doesn't bump the PTO hp up high enough to for sure say that a 5' bush hog would work well for you. A 30hp tractor would let you run a 5' hog without any problem.
I have some steep spots on my property, the TC24 will climb them, but cross slope driving is a no-no!