When comparing Whiskey vs LightPaper, the Slant community recommends LightPaper for most people. In the question“What are the best Markdown editors for OS X?” LightPaper is ranked 21st while Whiskey is ranked 46th. The most important reason people chose LightPaper is:
Can be extended to support Multimarkdown, GFM-style code fences with syntax highlighting and even math rendering.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Simple
As far as Markdown editors go, Whiskey is pretty simple to use.
Pro Extended markdown support
Can be extended to support Multimarkdown, GFM-style code fences with syntax highlighting and even math rendering.
Pro Advanced file-management built-in
Can browse and open files and even has a built-in fuzzy file search.
Pro Built-in preview
Pro PDF & HTML export
Pro Your own preview template is supported
You can create your own template that is aligned with your branding.
Cons
Con In beta
Whiskey is still in beta (as of September 2016) and might even be abandoned entirely.
Con Crashed repeatedly and refused to open without crashing after theme installation
Con Spell checking needs to be activated every time you open a file
In order to activate the spell checker you have to do so every time you open a file in LightPaper. There's no way to leave this setting on by default.