I really, really like #3. It's square, sharp, and gets the point across. I think Tagline is too big though so let's see about dropping that. Maybe try a couple other designs based off this style. I also like it when two colors are used on words...
# 2 is okay, but isn't square in nature and is sort of plain.
I really like the dimension of #24. Not a big fan of the color choice on #23. Can you try another color combo to bring in something along with blue? Or different combo altogether?