So, what is better a locker or a limited slip. I do not do any heavy offroading just a little and this is the truck I drive back forth to work everyday.
Well only you could decide what is better for you, but with an e-locker or ARB locker(compressor needed for the ARB set up) you can select when you want the rear wheels locked and when you don't. When they are not locked the rear diff acts like it does now as an open diff. With a LSD you get better traction on the road, but off road if one wheel losses traction it acts as an open diff, which defeats the purpose of locking diffs. This can be helped a bit by pressing on the breaks to transfer the torque to the tire with the traction. But there is only so much you can do in this situation.
The general consensus is that a selectable locker is better all around since you can control when you want them locked and when you don't.
One other thing I would like to add is in rain or snow you have to re-learn how to drive with the LSD since it has a tendency to fishtail a lot easier. So you have to be really easy on the peddle, yet another reason why people like selectable lockers.
The only time I’d say an LSD is a better option is when money is a concern and you don’t mind learning how to work around the tendencies of the LSD.