Sleek and simple, the Bosch Benchmark Series tops many of the most recent consumer review lists. The series includes 13 models in North America, mainly differentiated by their sound ratings. The series is applauded for its energy efficiency, with models using just two-and-a-half gallons of hot water during normal wash cycles. They come with adjustable upper racks, a handy third rack, and interior lighting.  Photo 2 of 6 in 5 Modern Dishwashers