I\'m searching for compelling Git and Mercurial clients on Mac OS X. The most clients I\'ve found so far were less compelling as I expected. Some of the clients are programmed e
It's commercial but I use Araxis Merge. I've used it on Windows, there's a very similar clone called Meld for Linux which I've used for years and the Mac version is very solid too.
It's pretty handy to have the same (or very nearly the same) too on all three platforms.
I'm more familiar with Mercurial than git so I'm very comfortable recommending it with Hg. As an aside, I'm guessing that you know how the hg extdiff command works but if not post a comment.