Hi all -- thanks for your replies to my "World's Best Economy-Class Seat?" post. I was wondering if one or more of you experts out there might explain to me what is the difference between a Boeing 747-400 Vers. 1 (74J) and a Boeing 747-400 Vers. 2 (744). Is it just that the Vers. 2 has more seats? Do you find one preferable to the other? Thank you in advance for your time.