Lady Fatima,
I'm short on time, but really quickly:
Muslims do spread at least one overt lie about Christianity that I can think of. They claim that Christianity is a polytheistic religion, and that Christians worship 3 gods. That would be fine if that's what Christians were saying. But no Christian alive would agree with this statement. In practice and in spirit, we worship the One; the Eternal, the Absolute. Whether He is divided into 3 persons or 99 names is of no consequence. The religion cannot be said to be polytheistic if no Christian practices it as though it is. It is the same as saying that Allah cannot be the "moon god" if no Muslim alive worships and treats Him as though He is.
Anyway, the "polytheism" tactic is the most common one I've seen on Islamic web sites, and it was always used when promoting Islam on campus when I was in the MSA.
Besides, knocking on peoples' doors and offering them food is much less annoying than holding a scimitar to their throats. As an Asian History major, I am very aware that Islam was spread largely by means of peaceful trade, but objective historians cannot deny that the sword played a major role, particularly during its initial expansion into Turkey, Persia, and Xinjiang (Western China). If you have a problem with the tactics of SOME (aggressive) Christians, then I have a problem with the tactics of SOME (warlike) Muslims.
One last point (which is actually a repeat of an old point). Muslims are forbidden to leave their religion on pain of death. Even if this isn't always carried out to the letter of the law, at the very least the ex-Muslim is shunned and ostracized from their friends, family, and culture. Say what you will about Christian proselytizing tactics...no amount of human persuasion would make a Muslim (or anyone) want to endure such a fate. As in the United States, Muslims are free to slam the doors in missionary's faces, or walk by them with rolled eyes when they scream from a pulpit in the marketplace. True conversions don't come from such intrusive speeches. They have their root in interactions with those who behave in a true Christian manner, who give freely of themselves and who share the Good News when asked, or as an explaination for their faith and good works.
I'm enjoying this debate. In the spirit of Pope John Paul II, I wish that there were reconciliation and genuine understanding between our two faith groups. The Catholic church does recognize Muslims as true worshippers of the One True God, and as heirs of Abraham. Perhaps one day we can find common ground in that. In the meantime, as long as bombs and planes continue to rain down on my people, I shall protest against the militant form of Islam that is determined to enslave us or kill us rather than exist alongside us.
In the end, yakum deenukum waliya deen.
Publius