I know I'm new here but I've been wheeling on the Rubicon for over a decade now. Hands down, the Aussie locker is king. When they're locked they're like a spool and unlocked they're just like an open diff, minus the slight clicking on occasion. And the best thing is that they actually lock when you need them and unlock when they're not needed. The only time they usually stay locked 100% of the time is on snow or ice, as there's not enough resistance to get them to unlock.