Asset allocations of different KiwiSaver types of funds – what’s the difference?

Even within similarly named funds, each KiwiSaver provider’s asset allocation is not the same. Do you know the differences between providers?
Employment restricted KiwiSaver schemes – are they worth joining?

Some KiwiSaver schemes restrict who can join them based on the organisation or industry one works in. If you’re eligible, is it worth signing up to one?