If cost of power (is fuel vs grid electricity) is the main factor, then aerodynamics are more important on a gas/diesel vehicle--especially at highway speeds where power consumption shifts towards air resistance induced by higher speeds vs the greater weight of EVs. If range is the major consideration, then electric.

Presumably, as EVs typically have a "skateboard" design with a layer of batteries near the base, it would be easier to design the front of a BEV for greater aerodynamics.