#36 - we like this but would like to see it with the font and colors of #7. On any of them we ranked, we be interested to see it with some shade of red as an accent color.
#7 - great as is and this may be our favorite even though it's ranked second. The font is great. A few things we may be interested in seeing. First, some red accent color. Second, what if the logo was turned and like a diamond (lines could be straightened). I think it would still give the "F" effect and maybe being a diamond it would look a little like a "V" too.
#38 - We'd be interested in seeing the icon a little smaller, and with the font from #7. Maybe some red accent as well.
#34 - With the font from #7 and red accent, maybe outlining the "F" in the icon or something.