Speaking strictly about "open source" information, Abu Musab al Masri, the supposed leader of AQIZ, is listed as the number #18 HVT in Iraq on some lists and #30 on others that are available open source. While I understand that the whole point for AQ is to have a system and not a hierarchical organization that can be readily targeted, it doesnt seem that military planners consider them the robust threat that "others" advertise.

While not having the name recognition and bumper-sticker value of AQ, Abu Deraa, one of the most prominent Shi'a death squad leaders, is responsible for killing more Iraqis than AQIZ has ever dreamed.