A plug in hybrid is the most appealing to me, unless someone pioneers some sort of super battery that provides 400-500 miles on a single charge.
One reason the Volt is so appealing: if your commute to work is 10-15 miles there, and 10-15 back, odds are you could do it on electricity alone. BUT, there is always a gas engine as a safety net and when that runs out of juice, fill 'er up in 5 minutes at a gas station.
Battery in a pure EV dies? Do you swing by the diner for a burger and try and sneak the cord in behind you or scan random buildings for outdoor plugs and take a nap?