In the interest of "science", I will try to perform the following experiment next week when we are at BWV. We usually order pizza via room service at least one night when we haven't made a PS for dining (room service is actually Spoodles pizza, I believe) and it has been okay but certainly not of the quality we get from a variety of places here in the Chicago suburbs. My DW is actually partial to Pizza Hut delivery, but I personally think Giordano's is a little better. In any case, when we do our in-room pizza night, I will do an order from one of these two places and see if they deliver all the way to our room or just bring it to the lobby and have us meet the delivery person there. I assume you can have them call you on the house phone when they arrive with your pizza if they do not bring it all the way to the room.
I would not use the OKW experience as a definitive indication of how things might work at BWV or WLV in regard to delivery right to the door of the room, since OKW has more of a "townhouse/condo" arrangement in separate, free standing buildings while BWV and WLV are arranged like hotels.
I'll report my findings upon our return.
Ralph