I believe hybrid is the best and greenest option at this current time. Even full electric vehicles have to burn fuel to make energy somewhere. In other words, instead of a gas engine burning the fuel, the power plant is.
A hybrid only runs the gas engine long enough to recharge the batteries, you will never really have to worry about making it home quick enough to plug in.
A tip for hybrids by the way, for best fuel mileage stay below 45 miles per hour, as the electric engine in most doesn't work above.
In other words, the car performs a lot better in the city than on the highway, so try to plan more city-based routes over highway based.