I favour a Lumicycle twin beam front set up -- one spot, one flood. Always revert to spot as courtesy to oncoming road users, on unlit sections.
If I don't receive the same courtesy, I can at least shield my eyes somewhat from a full beam in the face, using cycling cap peak.
Flashing front lights on the other hand, are a serious disturbance, and seem pointless outside of an urban street situation. Yet many cyclists persist with them in every environment, as default. Probably just to save batteries.
As many here point out, getting on a bike doesn't automatically turn anyone into a considerate fellow.