General

HP and MP

If you don't have them balanced you will be weaker. Like what someone said before me.

All give damage based on the Multilateral Skill.

Strength gives Stance % Chance
Dexterity gives Abnormal Status Resistance % Chance
Luck gives Avoid % Chance

Pick your poison.

if you dont balance them you are at a disadvantage
it has 3 stats so the formula is meant to maximize potential by balancing them otherwise there is no point in have more than 1 stat

[quote=LeadIn]I remember in one forum someone said luk was the best o.o[/quote]

They all play an equal role in the damage formula. However, it's been shown that apparently luk does add slightly more range, but it's only a few points, hardly something to fuss over.
After you put 330 into each (for Multilateral) you should lean towards whatever you have the most % for.

all 3 of them are equal, so you can't go pure stat because you'll lose % of your Dmg, and all stats% is good

I say each has their own perks so best to try and balance it, get all stat% equips if possible. Somewhere (I forgot where) each stat give bonuses like STR gives more "Stance" (forgot what LUK and DEX did). For damage though...I have no idea what's better.

try experimenting

INT
~Not so true story.

None. Xenon believes in equality.

EDIT: except INT. INT can go die in a fire for all he cares.

I remember in one forum someone said luk was the best o.o

Best is to keep it balanced