I have my house up for sell, but it has one major flaw....it's
close to a busy road. Now upstairs on one side overlooks the road
a bit and this is clearly visible from two of the three bedrooms.
Do I show any potential buyers the upstairs first or the downstairs
(which is nice and spacious) ?

In other words, show them the best features first and the worst features
last or vice-versa?