Ever since watching the 'Demogorgon and the Gnome' interview on youtube, I've been fascinated by the idea of optimizing what has to be one of the least optimal race/class combos possible: the gnome barbarian.
Here's what I've come up with so far. Please critique and let me know where he can be improved

Please note, I use Versatile Expertise and Paragon/Robust defenses because the games I play in do not use Dark Sun or Essentials content.
====== Created Using Wizards of the Coast D&D Character Builder ======
Tiax the Gnomequeror, level 30
Gnome, Barbarian, Captain of Fortune, Legendary Sovereign
Build: Thaneborn Barbarian
Feral Might: Thaneborn Triumph
Versatile Expertise: Versatile Expertise (Hammer)
Versatile Expertise: Versatile Expertise (Pick)
Sword of Kings: Hurricane of Blades
FINAL ABILITY SCORES
Str 26, Con 12, Dex 12, Int 22, Wis 10, Cha 20.
STARTING ABILITY SCORES
Str 18, Con 10, Dex 10, Int 13, Wis 8, Cha 13.
AC: 45 Fort: 47 Reflex: 46 Will: 42
HP: 216 Surges: 15 Surge Value: 54
TRAINED SKILLS
Intimidate +25, Endurance +20, Athletics +27, Diplomacy +25
UNTRAINED SKILLS
Acrobatics +15, Arcana +23, Bluff +20, Dungeoneering +15, Heal +15, History +21, Insight +15, Nature +15, Perception +15, Religion +21, Stealth +17, Streetwise +20, Thievery +15
FEATS
Level 1: Versatile Expertise
Level 2: Resourceful Leader
Level 4: Gnome Weapon Training
Level 6: Scrappy
Level 8: Deadly Rage
Level 10: Durable
Level 11: Paragon Defenses (retrained to Robust Defenses at Level 21)
Level 12: Toughness
Level 14: Charging Rampage
Level 16: Impetuous Charger
Level 18: Powerful Charge
Level 20: Improved Initiative (retrained to Superior Initiative at Level 22)
Level 21: Primal Resurgence
Level 22: Acolyte Power
Level 24: Novice Power
Level 26: Epic Will
Level 28: Epic Reflexes
Level 30: Epic Fortitude
POWERS
Barbarian at-will 1: Howling Strike
Barbarian at-will 1: Pressing Strike
Barbarian encounter 1: Escalating Violence
Barbarian daily 1: Thunder Hooves Rage
Barbarian utility 2: Shrug It Off
Barbarian encounter 3: Shatterbone Strike
Barbarian daily 5: Rage of the Crimson Hurricane
Barbarian utility 6: Snarling Defiance
Barbarian encounter 7: Curtain of Steel
Barbarian daily 9: Tiger's Claw Rage
Barbarian utility 10: Reactive Surge
Barbarian encounter 13: Storm of Blades (replaces Escalating Violence)
Barbarian daily 15: Rage of the War Bringer (replaces Tiger's Claw Rage)
Barbarian utility 16: Kill Them All
Barbarian encounter 17: Devastating Blow (replaces Shatterbone Strike)
Barbarian daily 19: Desert Wind Rage (replaces Rage of the Crimson Hurricane)
Barbarian utility 22: Unexpected Clarity (retrained to Rush of Battle at Acolyte Power)
Barbarian encounter 23: Berserker's Shout (retrained to Hold that Thought at Novice Power) (replaces Curtain of Steel)
Barbarian daily 25: Stone Tempest Rage (replaces Thunder Hooves Rage)
Barbarian encounter 27: Hurricane of Blades (replaces Storm of Blades)
Barbarian daily 29: World Serpent Rage (replaces Rage of the War Bringer)
ITEMS
Adventurer's Kit, Marauder's Elderhide Armor +6, Thundergod Warhammer +6, Iron Armbands of Power (epic tier), Boots of the Mighty Charge (heroic tier), Gauntlets of Blood (paragon tier), Horned Helm (paragon tier), Badge of the Berserker +6, Ring of Giants (paragon tier), Ring of Tenacious Will (epic tier), Belt of Mountain Endurance (paragon tier)
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