Deluxe hotels only have 1 bus stop. If you lump the DVC resorts in with the Deluxe hotels, then there are 3 that have multiple bus stops: AKL (one stop each at Jambo House and Kidani Village), OKW and SSR.
Yes, only one stop at Poly, same as the other deluxe resorts. But, just to clear any potential confusion, it shares buses to the parks with other area deluxes (mostly GF, sometimes Contemporary).