I tried all of them.

To be honest, I installed all of them, but only tried the sans-serif fonts. I hate serif fonts.

I ended up using DejaVu Sans Mono, but I am open to any font that proves to be "better" in the future, as long as it is sans-serif.

One reason to choose DejaVu Sans (Mono), also in my xterm's, is its pretty good Unicode support.