maxalt,
hate to quibble but...
I have yet to see an EI SH flight with 20 biz rows... how else do you get 100 biz pax in an A32x?
On my recent excursions to LHR the biz seats were 1-7 outbound [35] and 1-6 inbound [30] ex SNN. Same ex ORK last time I flew that sector.