The OnGuard Pitbull STD lock wins Gizmodo's recent showdown. According to Gizmodo, "It's invincible against hand tool." and is "the best of the bunch." The Pitbull line-up includes great locks, with top-rated materials and locking mechanisms.
For more information on the Pitbull line, visit the series here.
To purchase a Pitbull lock, click here.