Originally Posted by
Enigma368
Is there one that I should pick to maximise my chances of getting NF?
Well if the 777 is operated by one of the new 773s (which ORD does seem to get on a fairly regular bases) then you're gurenteed NF.
Originally Posted by
Enigma368
does hi-J, mid-J have to do where business class is located on the plane? (does hi-J means upstairs on 747)??
It's to do with how many J seats are on the aircraft (52 or 70) and location of CW (behind First or behind WT+) but nothing to do with the Upper Deck as all BAs 747s have CW up there.