As of 2015, Cuisinart makes the best indoor grill. The Cuisinart GR series of indoor grills is not only rated as the best indoor grill by Consumer Research, but it also places high on other lists of top indoor grills from Good Housekeeping and About.com.
The Cuisinart GR Griddler G4 is rated highly because of its versatility. Its design allows it to lie flat to act as a more traditional grill, and it has adjustable hinges to help cook larger foods. It also heats evenly and has a large cooking surface. However, the thermostat can be difficult to work with, and it is more expensive than most other indoor grills.