I have attempted to use the now standard "Devo" nomenclature, even though this reads like a soft drink menu. I have also given a brief description of each option. These are deliberately short, so I am sure many will take exception to my definitions.
Independence (Devo Ultra)
As currently proposed,
this involves Scotland becoming a sovereign nation with all taxes and
duties being levied by Edinburgh. Scotland would retain the pound, as
well as partial ownership of the Bank of England, and the Queen would
be the Head of State. Scotland would receive the full benefit of its
natural resources, including oil and gas revenues. There would almost
certainly be some cooperation with the rUK, for example on currency
and defence matters, but sovereignty would rest with Scotland.