
Originally Posted by
ForestOwl
Dressspheres determine the characters' stats; YRP do not have their own stats. For instance, if Yuna was a Gunner, then switched to Warrior, her HP and Strength would increase, but if she then switched from Warrior to Black Mage her HP and Strength would fall and her MP and Magic would increase.
If YRP were to all wear the Warrior DS their stats would be the same if they are all on the same level. Similarly they would have the same stats if they were to all wear Black Mage. The only DSs that have different stats are Trainer, Mascot and Special.
Regarding the PR/Marriage subquest you will need to talk to everyone once per chapter, so it does involves revisiting each place again when you change chapter.