Which two of these five feats should I pick?

[claudekennilol]

My warpriest just hit lvl 9 and I've got my lvl 9 feat and a bonus feat to choose (bonus feat meaning I can pick a feat that has prereqs of up to fighter 9 and/or bab +9)

Furious Focus
Extra Traits - Fate's Favored, Adopted -> Glory of Old
Weapon Specialization (Scythe) - +2 damage all the time
Devastating Strike - +2 damage now then goes up to +4 damage at 11
Improved Critical (should crit 19% of the time when I'm making an attack action)

I play this character with my wife who has a two-kukri-fighting slayer with Butterfly's Sting and Improved Crit. We have Outflank. I move around and flank, and she steps up and full attacks, more than likely getting a crit. Then on my turn I use Greater Weapon of the Chosen to roll two dice for my single attack and take the better of the two because it's super important that I hit so I can crit--then it's usually dead. Since I'm usually attacking once I have Vital Strike.

So Furious Focus is to up my accuracy on my turn because if I miss then I don't crit.

Extra Traits - Fate's Favored is for Divine Favor and other spells that give a luck bonus, plus an extra AC from my jingasa (so +1 AC, +1 to hit, +1 to damage). Glory of old is for +1 trait bonus on saving throws against spells, spell-like abilities, and poison.

Weapon Spec and Devastating strike are pretty self-explanatory.

And Improved Crit is just for when I take my single attack (chances of a 19 or 20 on two dice is 19%).

I'm thinking I should take Furious Focus and Extra Traits. Thoughts?

[Cavall]

Weapon specialize.

Adding 2 means adding 8 with the crit your wife is giving him, or a solid 2 all the time, with no downside.

Look through your feats and see if you can retrain any now, then maybe grab that Furious focus.

[claudekennilol]

But what's two damage on top of thirty-ish? And what's eight on top of a hundred-ish?

[Cavall]

When your job is to do damage, doing 8 more is exactly what you want. The last thing you want to do is give the enemy a turn.

If you're doing a lot of damage and doing overkill, and don't need the damage, cleaving finish would be good too.

[Paulicus]

Furious focus is probably extra useful in your case, with one attack that you really want to hit with, though it's not usually high on my personal priority list.

Improved Critical can be replaced by a keen enchantment on your weapon (and gold is usually easier to come by than feats). Still, with the teamwork thing you have set up, they are both less useful than usual.

Devastating Strike will be better than Weapon Spec, unless you're full-attacking, which is sounds like you might not do as much.

Consider taking Step Up if you haven't yet. Even without the extra feats in the chain it can be very useful.