Need a little help with my Ninja's attributes.

We're playing with 25 pt buy, I'm a bit lost how to distribute them.

First, I don't want to make a str-based ninja, even if that maybe means a bit more damage. So I'll be TWF, dex focused.

So far I came up with this:

Str 13 (mostly so I can carry my armor and weapons without going into med encumberance)
Dex 16+2
Con 14
Int 12
Wis 10
Cha 14

I'm not really happy about the 10 Wis. Will save and Perception checks are tied to it after all.

Few options I thought about:
1) lower Str to 11 (might be possible, but pushes my carry capacity to the limit. Later there are magic stuff to help, but this is 1st level)
2) lower Dex by 1, that allows me to raise Wis to 13 (or 12 and int to 13)
3) lower Int to 10, raise wis to 12. (already struggling for skillpoints, so rather not do that either)

Neither of them seem really great.

Would you perhaps spend the points completely differently?

Str 13
Dex 16+2
Con 13
Int 12
Wis 12
Cha 14

You're basically trading 1 HP/level and -1 Fort save for +1 Perception/Sense Motive and +1 Will save.

Actually I think your stats are about as good as you are going to get. I would not worry so much about the skills as there are a lot of skills that do not need to be maxed out. More important will be meeting the prerequisites for feats.

Without a 13 STR you will not be able to pickup power attack or any feats along that chain. It may not seem that important but any extra damage helps. Likewise without a 13 INT combat expertise is out of reach, which means no trips, disarms ext.

If you are really worried about will saves there are a lot of ways to boost them. Several traits give bonus's to will saves, as will Iron Will.

Cost wise dropping the DEX will be the most efficient. Go with a INT of 13, and a WIS of 12. When you get to 4th level boost the DEX to 18, and at 8th raise the INT to 14 for 8 extra skill points.

I advocate

2) lower Dex by 1, that allows me to raise Wis to 13 (or 12 and int to 13)

Raise your Wis to 12 and Int to 13.

Then, take Iron Will.

Like, as a rogue, you're already halfway screwed. Bonus? You're actually a ninja. When you start getting into the "will save or DIE" territories, you'll have invisible blade, and they have to find you before they can cast on you.

Why take Power Attack when she can take Pirannha Strike? If she's going with a Finesse build it'll all be light weapons anyways.

Here's what I would do 25 pt. buy:

Str 12(for +1 dmg)
Dex 17(15+2)(raise at 4th level)
Con 12
Int 12
Wis 12
Cha 16

The reason for this:
Strength is for a +1 damage to your main hand-even that can help.
Dex is higher because ninjas have a medium BAB,so you'll need a higher to-hit.Raise at 4th level.
Con I normally play with lowered,but that's simply my style.
Int is good for some Knowledges and grabbing an extra skill point.
Wis is good for Will saves and Perception,both things you'll need.
Cha is obvious for a good amount of your skills as well as your ki pool.

As a side note,grab two spring-loaded wrist sheaths-I always find that they come in handy.Also,you oculd grab a Mwk Backpack to bring your strength score back up to 13(for the purposes of encumbrance).

Why take Power Attack when she can take Pirannha Strike? If she's going with a Finesse build it'll all be light weapons anyways.

A couple of reasons to take power attack.

1. To qualify for other feats, Cleave, Sunder.

2. Power attack works on all weapons not just light weapons. You can also weild a weaponn in two hands for further bonus. If he gets STR boosting items this becomes more important.

Another reason for the 13STR is carrying capacity and encumberance.

Thank you all for the answers.

I decided to go with this now:
Str 13
Dex 16+2
Con 12
Int 13
Wis 12
Cha 14

So I lowered Con by 2, that way I can keep Int and Str at 13, which might be good for PA or CE if I want to take them, and the increased carrying capacity.

I thought about Str 12, Con 13, since the Power Attack chain doesn't really seems that interesting for me, but that's only good if I plan to put a ability increase into Con. And I don't think I'll do that, most likely not before level 12 at least.