It really depends on what you are doing.
Accelerate then brake, like a bus or a train, and hybrid is the way to go. (in my region, we are at 800m elevation. The trains coming up used electricity, and the trains going down generated it..perfect sense, but now the trains going down use brake pads instead).
Long distance, high speed, then normal high efficiency engines rule.
In my semi-rural location, work have bought hybrids, and they fall well below European turbodiesel economy.