Please be aware that there is no seat 3A on the longhaul 77J, only rows 1 & 2.
As a regular reader of TG forum, I can assure you that no other poster would put the 744 F seating above the 77J seating, at least among those who have actually flown the 77J. Although aging, the 77J seats in F are way better than the A346 and 744 F seats (those onn the 747 are getting very old first generation solo F seats). And in J they are miles apart with 77J being the best flat herringbones bed in the industry, while the angled lie-flat on A346 and B744 are uncomfortable and quite old on the 744.