LEED is just crap but the architectural establishment suckers STUPID local government into supporting it.

Architects simply won't allow proper insulation and want to designs they always do--paper-thin walls, lots of glass, standard building construction methods that allow 'thermal bridges', inadequate air tightness but allows lots of meaningless gimmicks. To be a LEED-NC professional you must memorize a bunch of worthless 'green facts' for a $200 test.

The final product is a joke.

Energy Star run by DOE is based on simulated annual energy consumption and is definitely superior but the best real world savings is about 30% below standard new. I understand that commercial property developers consider Energy Star more realistic that LEED and price those properties higher.

Passive House looks at a 90% reduction below standard new but does require many lifestyle changes. Rooms are smaller, windows are for passive solar heating, efficencies of appliances is very high. Water usage is restricted.
Still if we are running out of energy it is very possible that a Passive House lifestyle would survive a drastic reduction in energy with ease.