Hierarchy
bishops and archbishops
Immediate Head of Bishops of certain areas
Historically, it was considered a good career for younger sons; bishops and archbishops lived a fairly noble-like lifestyle, and it avoided splitting the family estate.
The main types are: assistant bishops, titular bishops, diocesan (or ruling) bishops, archbishops, metropolitans, popes and patriarchs. They are all bishops, but they have different levels of seniority.
Popes, cardinals, archbishops and bishops
All cardinals are bishops or archbishops.
My Anglican minister said one suffices for both Bishops and Archbishops.
NO
More or less. In both churches archbishops are high ranking bishops usually in charge of a large or historically important area.
The following Anglican bishops are automatically members of the House of Lords: * The Archbishops of Canterbury and York * The Bishops of Durham, London and Winchester In addition, a further 20 Anglican bishops by seniority, meaning the twenty who have been diocesan bishops for longest.
The Pope himself along with two other Bishops, or any other Bishop he appoints to do it in his place.
There are currently (May 2011) 5,215 living bishops. This number includes bishops, archbishops, cardinals, and the Holy Father. See link below.