I'm so used to visualizing things as I think about them, that I don't actually think of it as visualizing, its just thinking. Sometimes the visual image is just sort a vague, background thing, like a faint hologram, other times its a very rich, detailed cinematographic representation, depending on my level of focus. I can't imagine thinking any other way. Its hard to believe NT people think exclusively in words, since most of them have horrible grammar and spelling skills.
I remember reading years ago that most people don't dream in color and that struck me as bizarre. if you found yourself in a black and white world, wouldn't the first thought in your head be "Wait - this can't be real, where are all the colors?" I think the shock alone would wake me up.
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"I don't mean to sound bitter, cynical or cruel - but I am, so that's how it comes out." - Bill Hicks