When comparing PT Mono vs Vera Sans Mono, the Slant community recommends PT Mono for most people. In the question“What are the best programming fonts?” PT Mono is ranked 12th while Vera Sans Mono is ranked 99th. The most important reason people chose PT Mono is:
PT Mono uses slashed zeros and a rounded lowercase "L", while all numbers are easily distinguishable.
Ranked in these QuestionsQuestion Ranking
Pro Clear characters
Pro Crisp on display
No pixelation on high pixel density displays.
Vera Sans Mono is licensed under GNU making it freely available.
Pro Clearly distinguishes clashing characters
Characters such as "1" and "l", as well as "0" and "O" are differentiated enough as to not be confusing.