When comparing Sudo vs Hasklig, the Slant community recommends Hasklig for most people. In the question“What are the best programming fonts?” Hasklig is ranked 28th while Sudo is ranked 80th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Good legibility
Different character categories are differentiated by height and alignment. Numbers are a line width smaller than capital letters. Zero is now dotted.
Pro Programming ligatures
Pro Four styles available
Sudo has Regular, Italic, Bold, and Bold Italic styles available.
Pro Works well on Windows
Sudo is hand-hinted for good rendering on Windows.
Pro Great for Haskell
Pro Has a heavier appearance than Fira Code or Monoid
Pro Completely free and open source
Freely available via GitHub, therefore can be modified and improved by anyone.
Pro Has many variants such as Italic, Bold Italic, Light, Semibold, etc., etc
Cons
Con Lacks !=
Some coding fonts with ligatures, like Fira Code, turn != into ≠, but Hasklig does not. The reason for this is that Hasklig was designed for Haskell code, and so turns /= into ≠ instead.
Con Some Ligatures like -<< don't look that good.
Con Has a heavier appearance than Fira Code or Monoid
Con No support for many editors, including emacs
Unfortunately, not supporting emacs is the number one reason I don't use this font all the time.
Con Very cute but not WYSIWYG
You want to see exactly what you've typed, not have your brain have to do a little dance every time you see one of these artifacts.