I used the Nova Jack skidding cone with a four wheeler for a few years and it worked fine but last year I bought a logging winch for my 305 DT and let me tell you it has been one of the best investments I've made.
It has about 150' of cable and with the self releasing snatch block, it has greatly reduced the work involved when cutting my fire wood. I even use the skid cone once and a while when I can't see the tree from the tractor and I think it might get caught on the way out.
I've used it to pull stuck pickups, four wheelers, I use it to move my chicken coop every now and then to new grass, and it makes a nice compact counter weight for loader work. The arch would not work for me because I simply can not back up to each tree. With the winch the tractor stays on the trail (mostly) and the trees come to it.
It helps that back in the early '80's I logged for a living and have a good understanding of felling and use of the chains and cable. I expected there would be a slow learning curve getting used to the lack of power from a skidder to a 30hp tractor with a 3/8 cable but I was very satisfied right from the beginning.
BTW, my winch is a Fransgard because thats what is sold locally. I looked at a Farmi and Igland that a couple of people have and I can't see a lot of advantage of one over the other. The design is fairly basic. I think they are all made quite well and don't see having to do much repair for a long long time.
I'm doing my fire wood now and might take a few pictures of it in action. If it could ever stop raining that is!
Good luck with what ever you decide to get.
Dan.