When comparing Middleman vs JBake, the Slant community recommends Middleman for most people. In the question“What are the best static site generators?” Middleman is ranked 4th while JBake is ranked 25th. The most important reason people chose Middleman is:
[Minification and compression](http://middlemanapp.com/advanced/file-size-optimization/index.html) are as easy as setting a few configuration options, and [unique asset hashes](http://middlemanapp.com/advanced/improving-cacheability/) are available to allow you to invalidate the cache of files that change regularly.
Ranked in these QuestionsQuestion Ranking
Pro Support for a variety of templating languages and preprocessors
Middleman supports lots of compiled languages, such as Less, Markdown, Textile, CoffeeScript, Stylus and more.
Pro Extensible and flexible
Middleman has a resources page full of official and community extensions.
Pro External pipeline management with Webpack
Replace your Gulp, Grunt, Bower configs
Pro Embraces Rails conventions
Middleman follows established conventions so if you know rails, you can easily pick up middleman.
Pro Easy deployment options
Pro Server included
Localhost server is included and can be used to preview content during editing process.
Pro Blog Aware
RSS feed, archive and tag support. Posts/Topics are a first-class citizen in jbake.
Pro Runs on / Control from the JVM
The site generator is just a specific usage of the JBake Java API. As such, jbake is easily integrated into other JVM software.
Pro Typical inputs
Markdown, asciidoc, plain HTML is supported
Pro Open Source (MIT License)
boosts permissive MIT License.
Con Too much magic happens
For new users it is hard to understand what is going on and why.
Con A little more complicated than other static site generators
Middleman is a big piece of software, it's not simply a static blog generator. Because of all the functionality and flexibility it offers it can be a little more complex than other static site generators and a little harder to learn all of its bells and whistles.
Con Runs on the JVM
JVM is a double-edged sword (startup time, memory usage, CPU overhead, ...) which might be considered overkill for a static site generator.