I would recommend a CTL. I am blessed to also have a D6 and 16 ton excavator with thumb. Even the D6 has a work out removing large oak stumps. I prefer to use excavator to dig them up before I use the dozer, It is just easier on the machines. If you look at a property thread I have "Hillbilly farming" I have some pics of all the different uses I have done with various equipment. If I all ready had a tractor and was looking at next thing to buy I would say CTL with tooth bucket, Grapple rock bucket and a Dansur Tree puller. I just upgraded my Cat 259d for a new 299d3. wow, it is like a small dozer. My D6 took me about 150 hours of seat time to call myself some what of an operator so I think it is the hardest learning curve of anything I've ever sat on. I have cleared standing timber with my CTL and tree puller, gets the job done and when that was all I had I thought I was on top of the world. I now can do it 3 times faster but I spent 6 times the money too. Bang for the buck CTL is hard to beat. Cost of operation and maintance is often over looked when buying. Pay or pay later. Either on machine parts or your time when old machine breaks down in middle of long weekend work project. Trust me I know.lol..I enjoy all my habitat work, actually I can not even call it work, it is too much fun and I try really hard to manual out of my work. I could hire to work done cheaper but I can do it my plan, my way,on my time line. Which is priceless.
