I currently have #1 ranked lower than it maybe should be. I like the style of it--very simple, clean, elegant, yet still connotes innovation--but I think the "CS" in the logo is redundant.
It seems I am digging the green/blue color scheme, but I think that is because no one has wowed me much yet with a good blue/grey scheme. You are one of the only people to have actually tried to implement it, as in #2. I wonder if there is a way to make those colors "pop" a little more and stand out.
One of the reasons I like your designs is that they aren't gradient-heavy. It seems like everyone is using gradients these days and I wonder if maybe sometimes it gets over-done.
You are doing a good job--better than the current rankings reflect.