So what's a good one?
I guess it's because europeans typically take their appliances when they move instead of leaving them in place (as they typically do in North America).
Costco had the best pricing on Bosch in my opinion. Cheap delivery and removal of the old unit. Was really surprised how lightweight a washing machine is, but I guess it's just a shell with a pump thin metal+plastic drawers at the end of the day.
For apartments, where tenants are more likely to abuse the appliances, a plug-in might make some sense, as it would make installing a new dishwasher slightly easier, and avoid needing to cut the power on that circuit to wire up a hard connection.
https://www.consumerreports.org/appliances/dishwashers/best-...
Whereas I place a top premium on the dishwasher actually getting the dishes clean, and then getting them dry afterwards. Bosch does fine on the first part, but without a heated drying cycle, they're rubbish on the second part.
I will never again buy another dishwasher without a heated drying cycle.
So, yes -- use those tests and listings, but make sure you fully understand the data behind them and assign your own priorities to those attributes that you value. Because what CR values may not be the same thing that you value.
That being said, next look at the brand. I have a Bosch and its great, super silent. If you hear a noise, you loaded your dishes too tightly and they're banging against each other.