When comparing 6x13 fixed vs Bitstream Vera Sans Mono, the Slant community recommends 6x13 fixed for most people. In the question“What are the best programming fonts?” 6x13 fixed is ranked 28th while Bitstream Vera Sans Mono is ranked 59th. The most important reason people chose 6x13 fixed is:
6x13 fixed is the apex of bitmap fonts. It has a nice, defined character set and great proportions for quantity of text onscreen, making for excellent readability. It is aesthetically pleasing for a bitmap font and has been deservedly termed 'classic'.
Ranked in these QuestionsQuestion Ranking
Pro Well designed
Pro Legible at small sizes
At a small text size, each character has a limited resolution. A character size of 6x13 pixels means only 78 pixels per character. Modern fonts are designed to be scalable and are less legible at these small sizes. Using bitmap fonts increases legibility by eliminating scaling and sub-pixel aliasing artifacts. Some scalable fonts include "ppems" embedded bitmaps for this reason.
Pro Available on every X server
6x13 is the classic fixed monospace bitmap font that is expected to be available on every X server. It is part of the misc-fixed family. These fonts were handcrafted for readability in a terminal.
Pro Widely available
It is distributed alongside the X Window System.
You can fit a lot of text on the screen.
Pro Font proportion is perfect
Width is just right (not too narrow, not too wide). Many other fonts lack this.
Pro Smooth with antialiasing
Smooth at small sizes while still clear.
Pro Readable at small sizes
All characters are easy to recognize at small sizes (comma, period, etc).
Pro Easy to read
This is subjective but this font is very easy to read. The letters are all spaced and sized properly.
Con Doesn't have a slashed zero
The absence of non-slashed zeroes makes it harder to distinguish "0" from the letter "O".
Con Extremely small on high-DPI screens
While it is crafted for a screen where the pixels are visible, bitmap fonts do not work well on high-DPI screens as they do not scale too well.
Con Line doesn't cover text right
When using Neomutt or htop, the line drawn over is too low - the top of the characters cut into the top of the line.
Con "mp" clump together with smaller sizes
E.g. in "The quick brown fox jumps over the lazy dog".