When comparing Proggy Clean vs Native, the Slant community recommends Proggy Clean for most people. In the question“What are the best programming fonts?” Proggy Clean is ranked 42nd while Native is ranked 79th. The most important reason people chose Proggy Clean is:
All characters are completely readable in the smallest size. Perfectly usable in terminal and code editors in 12px text size.
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 Readable
Pro Consistent character widths between the italics and weights
Within Native's weights and styles, each character occupies 580 points of space. This ensures code does not become misaligned if a developer prefers certain callouts in a different style.
Pro The regular weight is free for Desktop, Web, and App Licensing
The regular weight can be picked up free of charge on MyFonts or Fort Foundry’s site.
Pro No alignment issues when switching between styles
Pro Italics are given a lot of differentiation
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.
Con Not FREE
Not free and hard to find.
