Personally
...this is my opinion.
I would say a real European front loader. Not because I'm European, I've used an American GE filter-flo top loader, a Korean Daewoo plate top loader but only European front loader satisfied me.
The main reason is the ability to perfectly clean whites.
For me a washing machine is good only if it is able to perfectly clean whites without bleach.
The second reason for me is the gentleness, so the ability to wash in the machine even extremely delicate hand washables.
Agitators increas friction, pilling and fuzzing on the surface of clothes even in high water levels.
Real profile wash from cold to hot, so better stain removal and not set in stains, high temperatures, higher spin speeds, much gentler on clothes, more rinses .... these are some reasons I personally prefer front loaders.
But if you have your own reasons that are different from mine you can get whatever works good for you
