I am still in favor of the FFT type system. The reason for this is... The "Armory System" still promotes tiresome grinding to gain abilities from multiple classes, to create the class you are wanting to play. As this is how I am playing now I don't have a big problem with it, except that the grinding could be replaced by Lore in the FFT system, through unlocking special skills during quests that tell about Eorza and your class. There are some that may say, well the Advanced Class system still requires leveling of classes you may not play, isn't that unnecessary grinding? Well, it wouldn't be as bad as getting to R50 Gladiator to get all your Tanking skills. Then you realize you now have to Rank Marauder to 48 for Defender II. Or if you decide you should Rank Conjurer to 50 so you could play a Paladin.
I do really like the 'idea' that you can level a bunch of different classes to combine skills and equip weapons to buff those traits, to in essence build your own class. But the FFT system could provide all of this and at the same time provide more story and direction for the game. It would create more limits than the, equip almost any skill you learn on any class system, but in the end most people will be making certain types of builds anyways.
(My example being Magic the Gathering. Out of thousands of cards that are released on a new Block, there's only a few (6-8ish) different types of decks that are played in Tournaments. The difference between decks of the same style ='s 3-4 cards. This is with the option of thousands of cards. So with the option of 100 abilities, how many builds will you see?)
Some people saying, what is the point of even discussing about Advanced Classes as there needs to be more content added. Advanced Classes would be a gripping and integral part of the extended content for the game.