Jordan D - aircraft of any size could use 23 or 05, although often the heavies would opt for one of the other runways if the wind wasn't too strong. If the delays really built up ATC would withdraw the option to land on other than 23 so everyone would have to use it.
Now who is going to ask about 15/33? When I was a kid I loved it when 33L was in use for landing - right over my house at 1500 ft... Strats, Connies, Daks... Unfortunately those runways were long closed when I started work at Heathrow.