Key specs for the top 6 models tested.
The best balance for most remodels is the LG Smart 2 cu. ft. MVEL2033F. It gives you the highest capacity and wattage in this group, plus smart controls, EasyClean, hidden vents, and a modern stainless finish that fits new kitchen designs.
The best value is the LG 1.8 Cu. Ft. Over The Range Smart Microwave because it keeps the key remodel-friendly features: sensor cooking, Scan-to-Cook, ThinQ connectivity, and EasyClean. It is the better buy if the 1.8 cu. ft. capacity is enough.
The ventilation pick is the KitchenAid 1.9 cu. ft. 400 CFM model. It costs more than the LG options, but its stronger 3-speed ventilation makes more sense for kitchens where the microwave is replacing a real hood over frequent stovetop cooking.
The space-saving choice is the Whirlpool 1.1 cu. ft. low-profile microwave. It gives up capacity, but its shorter height helps when upper cabinets are low or when you want more clearance above the range.
The ZLINE MWO-OTR-H-30 and ZLINE MWO-OTR-30 are the design-forward convection picks. They are pricier and lower wattage than the LG models, but they add convection cooking and a pro-style look that can suit premium remodels.