OpenOffice.org
There is no doubt that Microsoft's Word is the ace when it comes to word processor for Windows 7.
Another annoying thing I have found in Openoffice.org documents is that, it doesn't let you save the files as .doc unless you carefully do it every time at the point of saving.
Do you find the margin border from Openoffice.org annoying? Usually you won't find a simpler way to right click and get rid of it.
