I'll give SyncToy the third vote!!!!!
I just LOVE FREE!!!!!
I have both the 32 & 64 bit versions on my & my wife system with Seagate GoFlex PORTABLE Drives.
Mine has saved my bacon TWICE now!!!!!
I run in Echo Mode, so my DAILY work is saved & I have 1 Major Folder uder which are the folders I use regularly.
So I setup Folder Pairs to save to Matching Folder Names under the Major Folder.
This way everything is under the Major Folder & each Subfolder has the same name & icon the source has!