Weird one but Dulux recommend water based for halls and rooms with little natural day light and oil based for rooms with lots of natural light to stop the yellowing.
One other thing to consider, I have just started painting the outlaws hallway its quiet long with 5 doors, they normally do like blue walls and white wood work. So this time I talked them in to doing some thing different Chic Shadow for the wood work and doors (its a grey) and nutmeg white on the walls this gives them a nice bright hall (not much light gets in when doors are shut) with stand out woodwork will stick a couple of pics up when I have finished it.
One other thing to consider, I have just started painting the outlaws hallway its quiet long with 5 doors, they normally do like blue walls and white wood work. So this time I talked them in to doing some thing different Chic Shadow for the wood work and doors (its a grey) and nutmeg white on the walls this gives them a nice bright hall (not much light gets in when doors are shut) with stand out woodwork will stick a couple of pics up when I have finished it.