Remember about the Gamerankings score....Reviewers were sent faulty copies of the game.
Since that huge error was found, more recent reviewers have increased their scores accordingly (it was at 74%, then jumped to 79 in a matter of a few reviews).
Being better than game A or B is merely subjective. Blue Dragon (for me) was better than some Final Fantasies, worse than others...And that was just BD.
As for the sales comparison, Dallinor, that's a joke. Your comparing a Final Fantasy which was revolutionary at the time, on a system that had a 100million instal base versus a system that might reach 50 million - and very few of which live in Japan...
And despite that, LO might still break 1m thanks to US and European sales.
Back from the dead, I'm afraid.