It is true that what we are told about WWII is very one-sided. There are two sides to every story. However, a lot of these revisionist history documentaries and websites are also very one-sided and cherry pick the info they want.
Some of them try to portray Hitler as a saint who did no wrong. That's going too far.
Hitler did have good reasons for invading Poland. But why then after that, did he go on to invade many more countries, and pulverized Warsaw, the capitol of Poland? The revisionists have no way of justifying that.
Hitler said he wanted peace, not war. But then why did he attack so many countries, especially Russia, where he invaded with the largest army in world history, comprised of 3 million troops.
It is true that Hitler wanted peace with England, but Churchill refused though. The US media is unfair to not let that be known.
Yeah the Holocaust may be exaggerated. But there are way too many witnesses of the gas chambers for it to have been untrue. Many of the witnesses are credible. And what about all the videos of bodies there?
The Nazis did do terrible things. So why would it be above them to carry out the Holocaust?
Wasn't there a document found at Wannsee about a secret meeting where they discussed the Final Solution? It was dramatized in this film:
http://www.imdb.com/title/tt0266425/