Here's a term--Mary Sue--that I hadn't heard of and a link to a test to see if your character is a Mary Sue.
http://en.wikipedia.org/wiki/Mary_Sue
http://www.ponylandpress.com/ms-test.html
The test includes some questions about a character that I hadn't even thought of (no big surprise to Chris). Anyway it's fun and could be revealing. The one character I passed through this scored a 1 but it probably should be higher.