slobster
Hero
Of the five that are actually called 'energy' as a game term, I'd never go with sonic - far too few effects make use of sonic damage, and the damage usually isn't that impressive. Acid, on the other hand... even ignores hardness of objects, doesn't it?
I believe sonic is the one that ignores hardness; that's why it tends to be rarer and have a lower damage output.
Pathfinder SRD said:Energy attacks deal half damage to most objects. Divide the damage by 2 before applying the object's hardness. Some energy types might be particularly effective against certain objects, subject to GM discretion. For example, fire might do full damage against parchment, cloth, and other objects that burn easily. Sonic might do full damage against glass and crystal objects.
Man my group had a long argument about this one, once.