I get where you're coming from in terms of Lifeless characters, They existed in a world. But didnt seem to belong to it. For instance in other Final Fantasy games, You could visit areas, and find people who actually knew you or a member of your party, or there would be some sort of connection to the world for a member of the party. Where as in FF12, The group you had adventuring seemed to be pretty isolated from any social aspect of the world.
Exactly, also it seemed that other than the princess the characters had NO reason to be doing what they were, even in X-2 the characters had a connection and purpose. It's because of this rather gaping flaw in the characters and story that i rate it as the joint worst storyline in Final Fantasy history.
I was a huge fan of the bounty hunting mechanic, i wish the battle system was a little more involving though, once you had kitted out your members with the best weapons and unlocked the full grid it was just a matter of setting up the correct AI for your particular enemy and leaving them to it. I even killed Yiazmat with very little involvement other than to change to wind absorbing armor when he used his 'limit break'. I had to laugh that when i fought the second to final boss i got a phonecall and forgot to pause the game, i came back to it to find the boss dead and a cutscene had kicked in, i hadn't even pressed a single button!
Thats another point actually, i've killed all the bounties, got all of the weapons (apart from the zodiac spear which was impossible to get without using a game guide from the very start), got all of the vespers and leveled all my characters up to at least level 90, yet i can't be bothered killing the final boss. The storyline was so pointless even though i'm clearly capable of completing the game i can't be bothered.