We went with a fridge, and it has totally changed the way we can do certain things. Used to be, you had a dedicated cooler full of ice and beer, and if done right you run out of beer and ice at the same time, then the party is over. W/ a fridge, you really just need room to fit a days worth of beer in there, and keep replacing them, first in first out style. This allows you to transport drinks unrefrigerated, saving TONS of high value real estate.
We spend a lot of time in Baja, where, you can buy warm tecate just about anywhere, but ice can be hard to come by. ARB fridge ******. w/ a big battery and ~100w of solar, the limiting factor to how long we can hide out at a remote beach has become how much water we carry. We can produce cold beer indefinitely.
As far as scotch or boat drink ice, that is the weak point in our system. On trips that require mixed drinks, we keep a separate dedicated small cooler that does nothing but hold a couple bags of ice.