Originally Posted by
gglave
At an equal level of comfort they would compare identically

No.
At equal level of comfort, A380 would have seat number different from A318, obviously.
My question was inspired by this seatmap, with pitches unfortunately missing:
http://boardingarea.com/blogs/freque...-boeing-747sp/
Cattle class of 78 seats. 78 Business and 29 First Class seats. Just 185 total.
Considering that 777-200ER flies longer than 747SP, and 777-200LR especially so - how few seats should a 777-200 have?