Norges and Norgetags versus the 1-18
In terms of capacity relative to my 20-lb. Norge, the 1-18 kicks it in the head and sends hit home crying. But a lot of that depends on what you're washing. The Fedders Norge is a very capable machine, but bladed agitators don't do well with huge, bulky items, like our California-king comforter, which the Norge can't do anything with, and the 1-18 rolls like a charm. It all depends on your needs and what you're looking for in a washer.
Part of that is also due to the 1-18's deeper tub and higher fill, too.
For the Norgetags (modern Maytags with a Norgesque underpinning and dual-action agitator), I find that they're capable but still not as capacious as the 1-18, mostly due to the fact that the ones I've used don't fill all the way up. Unlike the Fedders Norge or the 1-18, however, they are quiet!
I have found that, for very soiled laundry, the Norge cleans better than the 1-18, depending on what sort of soil it is.