I'd read that LEAF rates were a lot lower than similar non-EVs. Coincidentally when I got my first LEAF I was shopping for new insurance due to recent gouging from my long-term insurer so I got several quotes. 4 of 5 gave significant discounts on the LEAF relative to my other ICE cars that were much older and with lower MSRPs. The 5th insurer had the LEAF about the same, but their overall price was the lowest so I went with them (State Farm).
It does make sense that insurers as a group are struggling with the LEAF pricing due to lack of data on EVs. If they go by straight MSRP they'll probably get a higher number. If they factor in tax incentives it'll be lower. I would guess that LEAFs have lower accident rates just because we early adopters tend to drive them more attentively and economically - that kind of data could significantly lower insurance costs for a model. Finally, repair costs are going to be an issue. The batteries have to be a big question mark but you'd think that it would cost less to repair an EV in a front end accident due to the simpler, lower cost components in the engine compartment.
Overall I think LEAFs will be cheaper to insure across the board in the long run for the reasons stated above, but as always it pays to shop around.