Colt47 said:
Personally, I think RPGs that involve a group of characters would be better off if they had a stronger focus on discovering new abilities and characters rather than worry about Dungeons and Dragons style character customization.
That can definitely work for some games but levelling characters up is one of the things that games do better than anything else, because levelling up can be a great way to make you care more about people, or understand them better. If you're going for an FFX esque game, finding characters all the time would weaken the characters you already have and water the narrative down a bit and 'I was weak but now I'm so much stronger' is a big part of the -going on a hard journey and maturing as a person- arc. There's definitely advantages to doing it the way FFX did.
Saying that I generally disapprove of purely D&D style levelling system, party based or not, because the decisions you make aren't very intuitive or clear. FFX worked because it didn't actually ask you to make many decisions based on statistics, it presented the statistics to you, so when you levelled it up it added to the 'Oh yeah Auron gets crudloads of power because Auron is a badass', the choices were more over which character you decided to level and choosing broad arcs (and eventually characters secondary specialisations.) with a couple of moments of 'is it worth getting this ability if it slows down your levelling a bit'
FFXIII also made the choice for you I guess, but it didn't give you the other choices and the levelling it did do, didn't inform the character. The closed world aspect of it then stopped most of the feeling of getting more powerful too.