I have picked out the power choices for the two fighters (twin Hida Bushi), rogue (Hiruma Scout), and warlord (Kaiu Bushi taisa). Both fighters and the warlord are dwarves while the rogue is an elf (for the extra movement). Since the warlord does not have a quote to show off his build purpose, let me just say that "he heals people" (although I gave him several other tricks to play with too).
Fighter/Pit Fighter 12: "A Hida bushi shows no mercy, striking with overwhelming force the instant opportunity presents itself."
At will - Cleave, Reaping Strike
Encounter - Spinning Sweep, Crushing Blow, Reckless Strike, All Bets are Off
Daily - Brute Strike, Crack the Shell, Victorious Surge
Utility - Get Over Here, Battle Awareness, Into the Fray, Deadly Payback
Fighter/Iron Vanguard 12: "Standard Crab withdrawal procedure in the face of an insurmountable foe: one man holds off the advance while his comrades go for reinforcements."
At will - Cleave, Tide of Iron
Encounter - Steel Serpent Strike, Sweeping Blow, Come And Get It, Frontline Surge
Daily - Comeback Strike, Rain of Steel, Thicket of Blades
Utility - Boundless Endurance, Unbreakable, Stalwart Guard, Inexorable Shift
Rogue/Cat Burglar 12: "The Hida stand with the stubbornness of a mountain; the Hiruma skulk with the swiftness of the wind around that mountain."
At Will - Piercing Strike, Deft Strike
Encounter - Torturous Strike, Bait and Switch, Cloud of Steel, Cat Burglar's Gambit
Daily - Easy Target, Deep Cut, Knockout
Utility - Fleeting Ghost, Chameleon, Shadow Stride, Instant Escape
Warlord/Knight Commander 12: "(Insert fancy quote here)."
At Will - Viper's Strike, Wolf Pack Tactics
Encounter - Warlord's Favor, Hold the Line, Surprise Attack, Slash and Press
Daily - Lead the Attack, Stand the Fallen, Knock them Down
Utility - Knight's Move, Stand Tough, Defensive Rally, Break their Nerve
The Kuni Shugenja will take a bit more time because I have to go through both the Warlock and the Wizard powers.
Wizard/Blood Mage 12: "More Kuni have become practitioners of maho, or blood magic, than all the other shugenja families in the Empire combined."
At Will - Ray of Frost, Scorching Burst
Encounter - Icy Terrain, Icy Rays, Winter's Wrath, Blood Pulse
Daily - Freezing Grasp/Sleep, Bigby's Icy Grasp/Web, Ice Storm/Wall of Fire
Utility - Expeditious Retreat/Shield, Disguise Self/Wall of Fog, Blur/Resistance, Soul Burn
Feats and skills are done for everyone but the warlord. I have no idea what to give him for feats; skills are Athletics, Endurance, Diplomacy, Heal.
The Pit Fighter needed to be resilient, powerful, and well protected: Toughness, Fleet-Footed*, Hammer Rhythm, Power Attack, Potent Challenge, Dwarven Weapon Training, Armor Training (Plate), Armor Specialization (Plate).
*Fleet-Footed was to offset the dwarven 5 speed. I may change it if I give him Battlestrider Greaves.
Skills: Athletics, Endurance, Intimidate
The Iron Vanguard needed to be tough, sticky, and deadly: Armor Training (Plate), Armor Specialization (Plate, Toughness, Dwarven Durability, Combat Reflexes, Back to the Wall, Blood Thirst, Dwarven Weapon Training.
Skills: Athletics, Endurance, Heal
The Rogue needed to be stealthy, mobile, and damaging: Alertness, Secret Stride*, Light Step, Defensive Mobility, Running Shot, Sieze the Moment, Backstabber, Elven Precision.
*I need to see if this invalidates Fleeting Ghost.
Skills: Stealth, Thievery, Acrobatics, Athletics, Perception, Nature (switched Nature for Dungeoneering because the Hiruma are above-ground scouts)
The Wizard needed to be a quick, decisive artillery platform: Alertness, Danger Sense, Improved Initiative, Feywild Protection, Burning Blizzard, Wintertouched, Lasting Frost, Spell Focus*.
*Spell Focus pretty much only applies to his non-cold daily spells but it gives the player something for switching them into the line-up.
Skills: Arcana, Diplomacy, History, Religion
I still have not chosen the warlord's feats but I know his focus. He will spend two feats on Skill Training (Dungeoneering) and Skill Emphasis/Focus/Whatever (Dungeoneering) to get his Kaiu bearings. The rest of his feats will focus on the bastard sword (proficiency, weapon focus, heavy blade opportunist, etc).