Mono-Space - Curlies, square brackets, comas, and periods are distinguishable even at 8 pt font, and comes with every windows box.
One of the original monospaced fonts available for X11R6.
Ranked in these QuestionsQuestion Ranking
Pro Pixel sharp
Pro Very neutral
Pro Easy to read
The design of Lucida Console is very clean.
Pro Feels natural
Con Zero is not slashed or dotted
This can make it hard to distinguish the letter "O" from the number "0".