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.
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.
Even so, comparing each font on your site affirmed my choice (Hack ftw). I'll be back, though, and will check out your blog in the mean time.