Goldberg's was mainly used as a set up to the Jackhammer. Reigns is solid but I need to see more of what he does with it. Big shows is ok, but with the choke-slam and knock out punch, the spear was never really used as a finisher. Rhyno's gore was epic, but so underrated (entire character), however he never did a spear off a 20 foot ladder.
For that reason + a billion more, I gotta go with Edge as the best spear.