There is not a door between the master bath and jet tub area at BWV. There is an open doorway that divides them. There is also the shutters (like at OKW above) that open into the room. The seond room of the bathroom that has the shower and toilet is divided by a door from the jet tub area and also has an entrance from the living room.
As for best tubs, it is a matter of opinion. The older designed resorts like OKW, BWV, BCV and VWL have the tub that looks like the one at OKW above. AKV and BLT have the somewhat longer but more narrow tub that is shaped more like a traditional tub.