Right now, with Civil skills, you are better off putting all your points into the same one each level until you hit the cap.
I've also made the suggestion that Civil skills should be given out every 2 levels, but there should be a cap on how many points you can put into any single Civil Ability which increases at certain levels. That would allow players to have more points to play with and spread them around, while not making those who invest all their points into one thing overpowered.
However, Larian has indicated that they are done with major changes to the game.
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Each conversation has a different check on what dialogue options are better at persuading. Some conversation choices are marked as "always", so the target will always be persuaded by that argument. Some are marked as "never" - the opposite of "always". Some options marked with [Attribute] first check Persuasion. If your persuasion is X, you pass. If you only have Persuasion at X - 1, it checks your [Attribute] number. If your attribute number is greater than a certain score (Y), you pass the check.
But if your persuasion is lower than X -1, you can't pass even if your [Attribute] number exceeds Y.
