Hoover and Hotpoint used to last for ages, our second hand hotpoint kept going for at least another 15yrs before it had to be scrapped for the Bosch.
Machines using induction motors are the most advanced and experience the smallest drops in efficiency from mechanical drag. Indiction motor speed is controlled by a Variable Frequency Drive, otherwise known as 'Inverter speed control'. Induction motor speed is dependant upon supply frequency, altering supply frequency is the most efficient way to start and ramp the motor up to full speed as startup torque is not compromised like with voltage based speed control. Motors starting direct on-line (no soft-start device) would experience massive current surges when coupled direct to the machine drum, thus they require a load-reducing belt drive arrangement which is less efficient. Motors coupled direct to the drum can also be wound for a lower full speed (1200-1400RPM) giving better torque and less power lost to bearing drag, motors on a belt arrangement will typically be 2900RPM. I would say induction motor direct drive with variable frequency speed control is the most reliable and efficient way of rotating the drum; i'd definitely consider a Siemens machine for the best performance in this area, as that setup is the bread and butter of their core business.
So, lets tick some boxes...
-Induction motor direct drive
-Inverter Speed Control
-Basic user interface, no bells and whistles just switches
-Stick to a trusted brand