Personally I like the 747's. I fly economy all the time I get a bulkhead seat or one of the double rows in the far back cuz I'm a bigger guy..I find the 747's roomier than the 346 and I avoid them.. I've only flown the 777's in J on Delta from ATL-NRT but it was my impression I would prefer the 747 over the 777 y product...of course everyones tastes differ..