A few other points I didn't see anyone mention: Extensive Applescript support. I'm going to go out on a limb here and assume most HN readers are not fans, and

A few other points I didn't see anyone mention: Extensive Applescript support. I'm going to go out on a limb here and assume most HN readers are not fans, and probably those who know any of it hate it. But, BBEdit has great documentation and an extremely solid and comprehensive implementation. It's one of the only Mac apps I truly feel I can do anything at all with in AS. Shell worksheets. Something of a Mac-only tool, I think. Emacs users won't be impressed, but this feature isn't common on other Mac editors, and I think both camps can agree "why the hell NOT?". Having your shell environment be your text editor is great!