[gtest]

Honest question: I have been using emacs/vim for many years, and always just used the diff viewer shipped with them. Any reason to switch to these tools? Do they have some functionality not available in these old tools? I am, frankly, ignorant of what these tools provide.

[anitil]

I really like vimdiff, but I belive it doesn't do folder diffs (whereas beyond compare does this well)

[pfranz]

Maybe my use-cases are too basic? I appreciate a good diff gui, but really like vimdiff more than almost all of the ones I've seen. For folders `diff -qr one/ two/` does everything I feel like I need. I love just filtering things with grep instead of trying to figure out however that tool wants to ignore specific changes.