FlashDevelop vs Kakoune

FlashDevelop comes without any cost.

FlashDevelop has first-class support for Haxe development, the open source toolkit based on a modern programming language and cross-platform library.

FlashDevelop's code completion is pretty good.

Although everyone claims Flash is dead, it's still quite useful for game developers due to its rapid compile and run times, as well as its great debugging functionality with FlashDevelop.

While it's project template system is not the best compared to it's competitors, it still is decent and is a good way to generate some boilerplate code.

FlashDevelop has XML/HTML completion aside from code completion.

It's windows only, but has tremendous support from plugin developers and a dedicated team that's been developing it for close to 10 years.

FlashDevelop provides very efficient debugging features.

This is very useful for carrying out high-speed HTML coding and editing.

FlashDevelop facilitates project compilation.

Although the code generation can't really be called top-notch, it's decent and sufficient for most developers.

Kakoune first started as a rewrite from scratch of vim, but then ended up being another text editor altogether. So it's inspired in a lot of ways from vim.

It follows the UNIX philosophy by doing one thing well (text editing) and interfaces nicely with other CLI tools.

Kakoune works on selections, which are oriented, inclusive range of characters, selections have an anchor and a cursor character. Most commands move both of them, except when extending selection where the anchor character stays fixed and the cursor one moves around.

Kakoune provides a very expressive set of commands, including various objects selection (paragraph, blocks, words), alignment support, conditional selection filtering...

This set of command is expressive enough to implement all the provided auto indentation logic.

A helper pops up when typing commands.

Some keys select, other keys operate on the selections. Shift is used to extend the selection, alt is used for alternative behavior, e.g. reverse the search direction. No inconsistencies like Y which means yy and not y$ in Vim.