[lacer]

After going throw the list and trying out many of them in my editor, I also picked Hack. What a beautiful font, even in surprisingly small sizes.

[gralx]

It really is beautiful. It's a variant of Deja Vu, as I recall, and its hinting is perfect on my display. The feature I really needed, though, was good Unicode coverage, especially for math and logic symbols, and Hack has that spades.