I would list them by priority. If the room assignor cannot meet all your requests, they at least try for the first one listed. If you have 5 people booked into your room, they should automatically give you maximum bedding which would include 2 queen beds, plus the daybed. Your reservation will already be listed as a standard view (if that's what you've booked), so I would put in the request this way:
garden view, full balcony, day bed (if less than 5 people in your room)
I would list the view first, because even if I did have to go with a smaller balcony, I'd still prefer to look at gardens instead of the parking lot.
Tammi