Left side when travelling to NRT as I was lucky (just the once mind) to see an exhilarating panoramic view of Tokyo with Mount Fuji clearly towering in the distance as I descended into the airport. I wouldn't like to miss the opportunity to see it again (although I'm putting my Dad there for my next trip... just in case.)
Is there a thread somewhere saying which sights can be seen on certain routes (and where you should sit to see them)? I was on the right from LAS-MAN a few months ago and got a terrific view of the Hoover Dam.