Since the Leaf has a smaller battery, it get's more wear and tear per trip.
All my Chevy based EV/PHEVs have had great battery life (so far) - knock on wood.
Some manufacturers limit this, but in a few years we will see a lot of hybrids that have batteries that barely work and will not deliver the expected ev only distance by a lot.
When used in the same duty cycle, most lithium cells/packs should last longer than the same capacity NIMH cells/packs.
Li-ion is not universally better, but its energy density makes it better for EVs, and economies of scale mean that they’re becoming as cheap or cheaper than NiMH cells even if the hybrid duty cycle will make them degrade faster.
If you want a real world opinion, check the EVClinic blog…