I voted old, but to be honest I'm not much of pilot.
However, before they felt more realistic in the short time I could fly them before I was shot down or flew into something, where as now even though I can hit stuff a lot better(with the guns, not the plane
) they just feel way too maneuverable. The way you can go ridiculously slow and still get lift and make turns makes me feel like I'm flying a hovercraft whenever I try to land or take off.