On the time/expense/fuel scale you'll need to add "mow" to the tiller side. Even small wisps that are 2 feet tall will wrap around the tiller rotar and have to be laborously hand removed unless you mow your field before tilling.
Most tillers are foward rotation, as in the tines turn the same direction as the tires on the tractor. Many users however like the reverse rotation tines. These dig deeper on one pass and leave a finer topsoil. However they are not without issues. They are usually more expensive and some folks say they hang in root/rocks instead of just "climbing" over them. I use the foward rotation mostly because I think it gets a better long term kill on the weeds. Chops down on the weeds instead of lifting them up. To each his own.
Tillers come with two differnt side drives. Chain or Gear. Most heavy duty tillers use a gear drive. My 660 John Deere has a chain and its never gave any issues and I've used it lots. With that kind of horse power you could run a very VERY wide tiller that would really cut the time over a smaller one. Big tillers are big money however and it would be up to you and your bank if in the long run there would be any advantage in going the tilling route.
Most tillers are foward rotation, as in the tines turn the same direction as the tires on the tractor. Many users however like the reverse rotation tines. These dig deeper on one pass and leave a finer topsoil. However they are not without issues. They are usually more expensive and some folks say they hang in root/rocks instead of just "climbing" over them. I use the foward rotation mostly because I think it gets a better long term kill on the weeds. Chops down on the weeds instead of lifting them up. To each his own.
Tillers come with two differnt side drives. Chain or Gear. Most heavy duty tillers use a gear drive. My 660 John Deere has a chain and its never gave any issues and I've used it lots. With that kind of horse power you could run a very VERY wide tiller that would really cut the time over a smaller one. Big tillers are big money however and it would be up to you and your bank if in the long run there would be any advantage in going the tilling route.