Previously I posted an image comparing DejaVu Sans Mono with Apple’s Menlo which are both based on Bitstream Vera Sans Mono. I made my own comparison, and in this also included Bitstream Sans Vera Mono and the different font weights.
Update: Posterous image ordering remains a mystery.
First, three sets of font comparisons – one set for each font pair’s different weights (I hope GIF animation is preserved by Posterous). View the images full screen to see the animations showing the different weights within a set.
Finally, a grid of all the comparisons. Enjoy.