#5 is my favorite, I like the idea, just not a fan of the multi colored arrows, they seem a little out of place for what we do, and they're not very representative of programming and technology. Maybe a little different font, but it's a nice concept. Thanks for submitting!
The lettering on #16 looks very old-school atari/duke-nukem themed. It's a little outdated for what we're going for, I want people to see out logo and think "cutting edge" and not "old school computing". Thanks