First to make it slightly more complex there are 2 types of Deluxe Studios at the Poly. The new Tower - Deluxe Studio (Island tower building) and the original Deluxe Studio (3 Longhouses) toward the TTC side of the resort.
The original Deluxe Studios have 2 bathing options (1 full bathroom, and 1 shower/sink) and are slightly larger than the Tower - Deluxe Studios or the resort side hotel rooms. They also have a Balcony or Patio on all 3 floors. The resort side guest rooms don't have a Balcony on the 2nd floor.
The resort side guest rooms have 2 Queen beds, and a day bed while the original Studios have 1 Queen bed, and a Murphy bed +a fold down bed under the TV. The Tower - Deluxe Studio only has 2 bed surfaces, 1 Queen bed, and 1 Queen Murphy bed.
I think you would be happy with any of the 3 options.
Dave