When comparing MT Andale Mono vs Panic Sans, the Slant community recommends MT Andale Mono for most people. In the question“What are the best programming fonts?” MT Andale Mono is ranked 32nd while Panic Sans is ranked 36th. The most important reason people chose MT Andale Mono is:
It's easy to distinguish "0" from "O", "a" from "o", and "I" from "l" from "1".
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Excellent legibility
It's easy to distinguish "0" from "O", "a" from "o", and "I" from "l" from "1".
Pro Good font variants
Boldface variant is not too heavy while italic face is not too spindly. Andale Mono contrasts with Source Code Pro, which is very similar in the regular font face.
Pro Tall and legible
Like its parent DejaVu and grandparent Bitstream Vera, this has tall and easily read letters.
Pro Clearly distinguishes clashing characters
Panic Sans has added uniqueness for characters that are easily confused, such as "0" and "O", "l" and "1".
Pro Clarity and appealing to the eye
There is great line spacing and italics in Panic Sans.
Cons
Con Not pure mono
Bold and italic are too wide, so it's not pure mono in combination with regular font.
Con Line spacing is small
This is a "pro" to me but some folks dislike the smaller space between lines (which is why it raises the underscore, which might otherwise vanish).