Really it depends on several factors. How much storage space do you have, how accurate you shoot, jpeg allows for less exposure correction than raw, what are you going to do with the final file(s). Your own expectations could dictate an entirely different set of considerations. Probably, for the novice, the most important is storage space. In camera and hard drive. Jpeg will require less storage space, but being a compressed file is subject to a loss of quality with every save. Raw saves all the information the sensor "sees" and is not a compressed file and not subject to the loss of quality like a jpeg but requires approx. 10-20 times the storage space of a jpeg.