At the end of the voting it turns out that two of the logo's were tied! Numbers 2 and 6, so, what I've decided to do is, since I'm going to adding new themes in the near future, is to use logo number 2 on the light colors themes, and logo number 6 on the dark colored themes.
Further Results:
Logo 1: 0 votes
Logo 2: 8 votes
Logo 3: 2 votes
Logo 4: 3 votes
Logo 5: 6 votes
Logo 8: 8 votes