Choose Cove if the dishwasher must disappear behind a cabinet panel in a built-in kitchen; choose Bosch for more models, a 38 dBA Benchmark flagship and easier parts. Here is a fair side-by-side on design, drying, leaks, faults and repairs.
Sub-Zero builds nothing but refrigeration and offers more widths and two distinct built-in looks, while Viking sells its refrigerators beside a full cooking line. Pick Sub-Zero for a cooling-only maker and Viking for one badge across the kitchen.