Wiki says that some companies agree[1] that "123456" and "qwerty" are the most popular. "password" seems to generally be in the top 10.
What's interesting on these lists is the presence of Dragon and Monkey - am I mistaken or is it due to CJK users entering a Chinese character that got translated somehow? Wouldn't that mean some of the most popular passwords out there are single unicode characters? Surely not...
