System architect at AraxaTech
I was for very long time happy with Bitstream Vera Sans Mono, but since lately it doesn't show that well on my monitor any more. I thought finding nice looking development font would be 5 minutes of browsing, but apparently it was not that easy. I found this website with lot of programming fonts and I tested many of them, but I liked only few - those are:
I like Anka and Mononoki the most, but others are quite close as well.
It is interesting that some IDEs render one font nice, while others don't (for example Anka looks nice in Eclipse, but horrible in Netbeans, while for Fantasque it is the opposite).