When comparing 6x13 fixed vs Mononoki, the Slant community recommends Mononoki for most people. In the question“What are the best programming fonts?” Mononoki is ranked 29th while 6x13 fixed is ranked 37th. The most important reason people chose Mononoki is:
Characters are well-differentiated and render clearly. Punctuation is large and easy to see. All characters are easily distinguishable from other similar-looking characters.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Well designed
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'.
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.
Pro Very legible
Characters are well-differentiated and render clearly. Punctuation is large and easy to see. All characters are easily distinguishable from other similar-looking characters.
Pro Very smooth
This font is smooth and beautiful.
Pro Works on cheap displays
Specifically designed to work well on low resolution displays (in addition to high resolution displays).
Pro Nice italic characters
Pro Works at low pixel sizes
9px +!
Cons
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 No ligatures
Con Parenthesis
Asymmetric and too bulbous.