to the comment below, hell no, these would suck for warriors..
can you say HP? Get a War Bow of Rallos Zek or Cazic Thule's brain and let it go to a monk or ranger or rogue, someone who really needs the ac..actually, anyone who needs the ac, paladins and shadowknights included would use this..but warriors can reach hard ac cap far too easily to waist DKP on this item