The electrical engineer inside of me is cringing and dying a little bit each time a new post is made on this subject.

1. Spark plug wires carry high voltage, low current, meaning that the total transmission loss is very low.
2. Some of the physics stated about lower wire resistance is true, but only if you are trying to transport 300KW of electricity from Riviera Beach Florida to Amherst Massachusetts. Between a coil pack and a plug, to fire a spark plug, the total wire loss is probably on the order of nanoamperes.