Hey,
the decision is rather subjective so the people's recommendations may differ...
However, I personally like the green one but I'd delete the color transitions as far as it's a bit outdated now. Also, if you plan to print business cards and posters, the colors may be inconsistent because of the transition.
Consider some kind of a less-detailed flat logo instead. Especially for the internet based service.
Cheers, Martin
Every link counts and even small change can cause rise in rankings. Especially if you operate on a competitive market.