Ombuds-

[packbat]

[Poll #1015910]

Comments

[zwol.livejournal.com]

I like that on its own merits — seems to me the function of the office is much more transparent to your man on the Clapham ommnibus when called that.

[packbat.livejournal.com]

Plus, it's already in use (http://www.google.com/search?hl=en&q=%22public+advocate%22&btnG=Search), meaning pretty close to the same thing.