When comparing Proggy Clean vs Meslo LG, the Slant community recommends Meslo LG for most people. In the question“What are the best programming fonts?” Meslo LG is ranked 15th while Proggy Clean is ranked 42nd. The most important reason people chose Meslo LG is:
The line spacing in Meslo LG makes it very powerful and gives it an amazing look. The font is especially clear for reading code in Eclipse or Intelli J.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro The easiest to read
All characters are completely readable in the smallest size.
Perfectly usable in terminal and code editors in 12px text size.
Pro Hipster among hipsters
Even hipsters will marvel at this font, praising you as the new hipster lord. It is best at around 19px (tested on Mac). Overall, it has better readability than many default fonts.
Pro Great line spacing and very easy on user's eyes
The line spacing in Meslo LG makes it very powerful and gives it an amazing look. The font is especially clear for reading code in Eclipse or Intelli J.
Pro Patched Powerline version exists
A patched version for Vim Powerline is easily downloadable and comes with additional glyphs.
Pro Unambiguous characters
The style of characters avoid ambiguity by making every character distinct. For example, a lower case "L" and upper case "i" are unique such that that it cannot be confused, even if you're unfamiliar with the font.
Cons
Con Pixelated
This is, of course, intentional; but it can be hard to look at compared to other smooth mono-space fonts.
Con Smallest font sizes hard to read
Fonts less than 11pt start to fail readability tests. 9pt specifically has an additional issue where brackets don't align.
Con Not really good in all font-sizes
Completely clean pixels, no anti-aliasing so its best viewed in (n*12) pixel size.
Bold font-weight is not really good because of small padding between them.