Every page I've seen regarding communism seems to be that of a conservative white collar American, and every page I've seen on the Israeli-Palestinian conflict seems to be from the viewpoint of a virulent Zionist. As a Christian-hating socialist, that steams me up. I've decided to use my personal page to pillory those poltroons, while devoting my energy to undoing their edits throughout the Wikipedia.
Here is a list of users who tend to edit pages with a right-wing or Zionist bias:
Political bias - mostly right-wing bias
User:Ed_Poor - an administrator, possibly the worst offender, ideologue
User:Fredbauder - an administrator, anti-communist
Jiang - an administrator, seems to be biased against Chinese communists
VeryVerily - right-leaning
Stewacide - right-leaning
User:Populus - right wing but at least follows some Wikipedia rules
Nationalist bias - here the bias is usually more nationalist than right-wing
Jtdirl - an administrator, seems to be biased against Irish republicans
RK - edits pro-Zionist. A complete fanatic, as many people realize
OneVoice - edits pro-Zionist.