An eladrin spear fighter actually works quite well. If you're starting at 11, I'd go with:
Str 18, Con 10, Dex 15, Int 10, Wis 13, Cha 10, so at 11:
Str 21, Con 11, Dex 16, Int 10, Wis 16, Cha 10
Paragon Path: Kensei (greatspear)
Feats:
Eladrin Soldier
Weapon Expertise (spears)
Polearm...