The best gas range at any price is the Kenmore Elite 78923, according to Good Housekeeping, noted for it's versatile dual ovens. Their pick for budget ranges is the GE JGB800SEPSS, with fast and even heating, a griddle burner and a warmer underneath the oven.
Other gas ranges to consider are the Samsung NX58H5600SS and the Frigidaire FGGF3054MF, two of the top rated gas ranges according to users at Best Buy. Both feature five burners to cook multiple courses and convection ovens for even heating of foods. In general, look for a gas range with a variety of burner configurations, generous oven space, and convenient features like a self-cleaning cycle, warming drawers and sealed burners.