At the same amount, which is the healthier staple food?

rice.............

Probably rice, but it's hard to tell. The only part of a potato the is especially healthy is the skin, which most people don't like (but I do :] )

Rice, if it is brown whole grain. Potatoes metabolize fast. Refer to the glycemic index. White rice is not really good either. All refined carbs should be limited in your diet.

Probably rice, especially if it's brown long grain rice.

rice

brown rice or plain potato- no butter,salt,etc..

plain baked potato

potatoes that's how the Irish made it trough.