Business Class to Tokyo

[ano]

Delta A330: 31"-32" pitch, 18" width

Delta 747-400: 31"-32" pitch, 17.2" width

Delta 767-400: 31"-32" pitch, 17.9" pitch

Delta 777-200: 31"-32" pitch, 18.5" width

...all DL aircraft are between 17.2" and 18.5" width in the cheapest seats.

 

WN's 737s are all 17" width and with only 32"-33" pitch.

 

You may want to look at more than the two simple SeatGuru numbers because they don't tell the whole story. https://www.wsj.com/articles/feel-squished-airlines-are-shrinking-headroom-too-1481130493

[FlyerTalker]

Some info on AA widebody business class seating, including a photo of the 777-200 Zodiac seats that alternate front/back facing.

 

LINK HERE