Appliance geekery

Ok, so have found a place to live.
Now need to start with the furnishings.
It's unfurnished, and we'll gradually work on expanding the collection - but basically will need a full set of appliances (and furniture) eventually.

So, does anyone have experience/recommendations regarding buying:
Washing machines (driers, or washer-driers)
Ovens
Fridge/Freezers?

Like who's good, who's bad, and what's important, and what's gimmick:
Energy rating - how big a difference is there between an 'A+++' and a 'B'?
Is 1400rpm significantly better than 1200rpm?
Is a washer-drier a bad idea (we have space for separates, but the 'other' would be out a garage-shed thing)?
I am under the impression that 'direct drive' is significantly better than belt, due to noise and wear and tear.

Ovens:
Pretty sure we have connection for gas. Am used to fairly basic ovens, in student houses.
What should I be watching out for though?

Er... anythign else?
What's the verdict on renting an appliance?