These aren't comparable; Miele is on a different level. In particular, Miele washing machines are properly repairable. Of course, they're also far more expensive.

EDIT: Missed AEG. These are essentially three tiers of product.

AEG is Electrolux's "premium" branding. In most cases, the same washing machine with different plastic will be available as Electrolux and Zanussi. Very much mid-range; better than Whirlpool/Hotpoint/Indesit, but that's not saying much. Should not be expected to be super-long-lasting.

Bosch (and Siemens, Neff; again, just different branding for the same thing) are definitely a step up. Some though not all machines are very repairable.

And Miele is a huge step up again. All machines should be properly repairable.