Nobody expects the Inquisitionator

I saw this build mentioned on a forum, and it sounded interesting.  Going to take a crack at it E6 style. I'm going to cheat just slightly with a +2 weapon because it's more amusing. Also going with a belt of giant strength to partially compensate for no shield or second weapon. I guess we can call this guy well equipped. Also, I'm calling a greatsword his deity-favored weapon, and could adjust the chosen domain as necessary.

Class: Inquisitor 6
Domain: Magic

Str: 20 (17 +1 level +2 human) [13]
Dex: 13 [3]
Con: 13 [3]
Int: 13 [3]
Wis: 14 [5]
Cha: 8 [-2]

Gear: +1 corrosive large greatsword, fullplate +1, belt of giant strength +2, deflection +1

Abilities: Magic domain (throw a large greatsword like a boss), inquisitor judgments (generally +2 sacred bonus on attack rolls), solo tactics for teamwork feats, bane, tons of not-immediately-combat-related-but-still-interesting things.

H1: Heavy Armor Proficiency
L1: Weapon Focus: Greatsword
L3: Power Attack
I3: Precise Strike
L5: Furious Focus
I6: Outflank
E7: Cleave

Spells:
1st: CLW, Divine Favor, Shield of Faith, Protection from Evil
2nd: Cure mod, Invisibility, Hold Person, Resist Energy?

Active buffs for attack line purposes: Divine Favor, Shield of Faith.

Hit:
6 str
4 BAB
1 weapon enhancement
1 weapon focus
2 luck (divine favor)
2 sacred (justice inquisition)
-2 size adjustment
= +14

Optional hit:
2 sacred (bane)
4 flanking

Damage:
9 str
6 power attack
1 enhancement
2 luck
= +18

Optional damage:
+1d6 on flank
+2d6 bane

Normal attack:  +14 [4d6+18]
Bane attack:  +16 [6d6+18]
Flanking attack: +18 [5d6+18]
Bane + flank:  +20 [7d6+18]

AC:
10 base
9 armor
1 armor enhancement
1 dex
3 deflection
= 24

Notes on attacks:  Having only the one attack opens up doors for stuff like the cleave chain, which won't interrupt a full attack action here because there's no second attack to sacrifice.  It also makes spring attack viable (however gimped at 20 base speed), hence the 13 dex to qualify.  Also, 13 int to qualify further for whirlwind attack.  A potential "epic" level feat would be Vital Strike (req. +6 BAB) as that would make the 3d6 base damage of the large greatsword 6d6, so we'd be starting normal attacks at 7d6 and going up to 10d6.

Notes on defense:  Shield of Swings is a quick addition for emergency shield bonus (and I'm not sure whether halving the damage output as written applies only to the base weapon damage or the whole damage output), and this qualifies for dodge eventually.  Some kind of natural armor amulet would probably be high on the list of priorities.  Combat Expertise is part of the Whirlwind Attack chain, and there's clearly +hit to spare here for that dodge bonus.

Why the Magic domain?  Because the mental image of chucking a large 2-handed weapon 30' for basically fireball damage +18 is highly amusing.  More thematically appropriate domains would be War (grant someone else +3 hit for 1 round) and Strength (grant someone else +3 hit for 1 round) or its Ferocity subdomain (+3 damage on an individual attack 5 times a day, which would bring the combat lines to +21 damage in most cases).

I also like that this character isn't totally gimped in terms of non-combat utility.  He has a lot of Inqisitor flavor stuff (discern lies, monster lore, track, detect alignment, healing and other spells) and decent skill ranks (6 + int).  I might decide to flesh this out more with skills and traits later.