Which type of nerve fiber (axon) has the fastest transmission because only the voltage-gated channels concentrated at the “nodes” are needed to open?

The Nervous System Part 1
Using myelinated and unmyelinated answer the following questions.

Which type of nerve fiber (axon) has the most voltage-gated channels along the entire length?

Which type of nerve fiber (axon) is a slower transmission because they have the most voltage-gated channels?

Which type of nerve fiber (axon) has the most voltage-gated channels concentrated at the nodes of Ranvier?

Which type of nerve fiber (axon) has the fastest transmission because only the voltage-gated channels concentrated at the “nodes” are needed to open?

Which type of nerve fiber uses less energy because not as many sodium/potassium pumps need to run?