Final Fantasy all the way. Awsome storyline, graphics, characters, battle setup, and all around an awsome game! With lots of secret stuff, cheats, and all!
6=7 basicaly, 1=9 with advancements, the stories are seperated into crystals and empire . 4,5,6,7,8,9 are basicaly the same run of the mill real time battle, 1,2,3,10 are together. The characters are very stereotyped. And there are much more than 1 FF.. and I am now agreeing with Franky40, none are that great, excepts I do like 1,4,6 and 8 on the PS1.
If it were for one game in a series, I'd say Shadow Hearts/Covenent, a story spanning two games that is decent, 3 discs, quite dark, much better than FF, Tales and Golden Sun, such a shame it was ruined with SH: A New World.
For qualaty spanning a large series, I'd say Zelda and Tales, with FF running up far behind. I would say DQ, but I hate emulators and I wish to play it on the TV. Also woth a mention are the 2D Sonics.