Not only do the Battlefield dungeons fail to produce boss enemy's, they also fail to give XP for monsters that are only 1 to 3 levels below your character.
Act 3 was VERY BAD in this way. Also half the quests were broken too <img src="/ubbthreads/images/graemlins/confused.gif" alt="" /> <img src="/ubbthreads/images/graemlins/down.gif" alt="" /> <img src="/ubbthreads/images/graemlins/down.gif" alt="" /> Act 3 battlefields were a waste of time to play through <img src="/ubbthreads/images/graemlins/disagree.gif" alt="" />

Yes I know that there is sliding scale on XP earned based on your level vs. the monster slewed. This system in <img src="/ubbthreads/images/graemlins/beyond.gif" alt="" /> is very flakey <img src="/ubbthreads/images/graemlins/think.gif" alt="" />