I think that's pretty much the same as asking "do you dream in voice or in images". I'm sure the vast majority of people use a mix, and not one or the other.
That said, it's just a feeling? Like, you feel pulled towards or repulsed by one or the other action.
Strong sensations might even have a "blitz" or snapshot of the possible future, but without blocking or occupying your eyesight. Something really bad might have you see yourself or others in tears, or whatever action is likely to fit them given the situation.
I wouldn't say that I think in images, at least not purely. If it requires deep thought then I'll spell it out in my mind, and if it requires speed (such as simple math) then I'll just skip the voice and use the abstracts of my mind directly.