Electrifying to me means that the player has done something that was spectacular - almost bordering on the seemingly impossible.
Ginn would crispy a lot of fast college DB's. Phenomenal straight line speed. Definitely electrifying.
Braxton has the juke/stutter/balance that leaves a lot of defenders grasping at air.
Devin Smith and Terry Glenn both had amazing body control and leaping ability to get balls they had no business catching.
Chris Spielman, AJ Hawk and Andy Katzenmoyer were terrors running around the field, often decleating ballcarriers with impunity.
Watching Orlando Pace destroy defensive lineman was cool. They had to invent the term "pancake block" for him.
Any of the above players is electrifying. The most electrifying will likely depend on your preference for exciting offensive plays, or crushing blows on defense.