Any of the DVC Villas - BWV, BCV, SSR and associated resorts - BWI, BC/YC. You need a deluxe for an actual patio. We had a great one at SSR in "The Springs". We were overlooking a nice pond with a fountain - lots of ducks.
None of the moderates will have a patio. But a ground floor room at CSR or CB the entrance may feel "patio-like" if you get one of the more isolated buildings. I've heard of people using folding chairs from home to sit outside and enjoy the scenery. If your in a centrally located building though the people traffic would be too much.