In terns of long term value, a base Hybrid is the winner, hands down. Fuel cost savings will be fairly substantial thanks to the superb fuel economy. RAVs hold their value very well, but the higher trims aren't priced relative to their initial premium in the used market, so the base Hybrid will retain the most value percentage wise. It's not a stripper model that would be tough to sell, even the base Hybrid is very well equipped.
That's the sensible approach to a new RAV. I think if I was buying one I'd either get the gas "off road" model or a fairly top trim Hybrid. With it being a long term keeper, get the options you want upfront and enjoy them over the long haul.