I'm going to hire out a contractor to frame walls and finish my basement. However I told them I don't want drywall over the concrete (The concrete cinderblocks are half way from the floor to the ceiling) I actually like the look of the concrete and the 2 tone contrast it will provide when everything is painted. Not only that, it creates a sense of a bigger space.
My question is is this better or worse for controlling humidity?
Whether or not you frame over the concrete block basement, and whether you choose to install drywall over the framing, has little to do with how humid your basement is going to be. Basement humidity is controlled by the passage of moisture between the outside and the inside of the house. Moisture passage would be affected by the presence of a vapor barrier on the inside or outside of the basement wall, but drywall and framing are not vapor barriers, hence the humidity would remain unaffected by their inclusion/exclusion.