I’d suspect they might be making the honorific choice on a game-by-game basis. It would make sense to use them for very “Japanese” games with heavy Japanese cultural references, while omitting them from more exotic, foreign-seeming (to Japan :P) games like PW. Personally, I think the dialogue in PW flows well without them. The dialogue manages to catch a flavor of the honorifics by using last names vs first names. If you listen to the spoken dialogue you can then pick up whatever you’re missing (minus the main character of course).
Persona 3 is an example of honorific-use gone awry, imo. Honorifics + English dub = ridiculousness.
By the way, for the stat micromanagers: there’s several points in the game when your battle stats change temporarily, also affecting experience values to raise the stats. You can use these times as opportunities to raise stats for less XP. If the stat goes down, it costs less XP to raise, and when the penalty wears off it’ll rise to the original value + the points you added. If the stat goes up, sometimes skills based on that stat will cost less XP (or will be unlocked). There’s your chance to buy a skill you really want at a discounted price.
Weapon skill of 10 I believe unlocks Overdrive, which in combination with Feint is overpowering. Getting the 3 color stats to 7 seems to unlock Rage, which I haven’t tried yet. I’m going for Focus or Rage next to complement the Feint + Overdrive combo. The color-specific skills seem pretty worthless once you have Overdrive. In the scenario that you’re playing 4 cards of the same color on your attack round (the ideal scenario for the color-specific skills), the break-even point for Overdrive and a +10 skill/card is an attack roll of 27, and 40 for a +20 skill–after that Overdrive wins, before that the color skills win. Once you have access to Overdrive you should have high enough weapon power + color stats to achieve that easily once you take into account the element bonus for multiple cards of the same element. And then of course Overdrive doesn’t depend on element. The -50% penalty of Overdrive shouldn’t apply because your enemy should have gone from full HP to dead after your attack (this even worked through a Block :P).
Edit: Just tried Rage. Though the description is ambiguous, the actual effect seems to be that +2 is added to the level of all newly drawn cards each turn. Cards already in place are unaffected. Thus Focus seems better suited to a charge → all-out attack approach.