LEDG vs Halogen Incandescent headlights

The well made Nighthawk H6024 have been out of production.
Pictures to ID the good ones vs the junk ones here: End of the line for H6024nh and H6054nh

Which gets back the original question.
It depends.
Well aimed, fresh old stock 6012 lamps will generally be more effective than poorly aimed, poorly made LED 'replacement'. In fact it may even be more effective than many of the newly made H6024 lamps sold today.

A top of the line LED replacement made by JWSpeaker, when properly aimed, will be more effective and use less power than most other options. However its expensive and doesn't look anything like a factory lamp.

A top of the line H4 type lamp such as some of the Bosche or Cibie housings, with the right bulb, can also be very effective.

The more reasonably priced lamps to compare are probably Trucklite LED and Hella 'Vision Plus' with a good bulb.