i can see what u mean by stopping movement and spreading, I think we have seen other normal lightning techs stop movement but not to that degree. The spreading is actually something I neglected reallly but that is diffinitly very different to any other normal lighting techs we have seen. Normal lighting seems to just follow simular form to lightning bolt in nature, quick and to the point.
I understand that as just being the power difference, added to what I said about the only difference being manipulation, I think it's safe to assume that it's also stronger, definitively because it have been used by the master of lightning, the Third Raikage.
Manga/Anime I read/have read/tried to read:
Full Metal Alchemist
Dragon Ball(Didn't like)
One Piece(Didn't like)
Katakayo Hitman Reborn(Didn't like)
Samurai Champloo(Didn't like)