That depends a lot on what you wanna do with the car. If you think lighting the tires in every gear looks cool, go with the stock 215-65-15s Is your car modded? Making a lot of power? You'll want something in the back that'll stick. I think the 275-50-15s look cool, get the Drag Radials if you wanna have traction too.
On front, I have 225-60-15s, I like them. The 235s would rub ever so little when I'd turn hard, so I didn't go with them. I think for GNs skinnies look cool up front, with noticably fatter tires out back.