There's a glaring omission in that currently there's no way to compare files other than by name. I'd like to be able to select / highlight files with the same name but that differ by either file size and or modified date.
Something like that are on the list. Problem is that "compare files" feature means a lot of different thing to different users.
Some what to be able to show diff of what is different between two files, some what to a content compare of files (hash). or just compare of the meta data (date,size)
But something like this is on my list.
Oneeasygeezer - You could try WinMerge
http://winmerge.org/ (http://winmerge.org/)
It's pretty good & it's free.