#2 is pretty sweet. The logo and the colors fit very well. The text could stand to have a bit of detail. Perhaps a metallic-gray look or something like that.
#1 has text inside of the logo, but it seems too small. I like the positioning of the text in #2 better.
#18 is a big improvement, but the second set of "icicles" may be a bit much. The color of the text could use some contrast as well. I like it better than #2 because of the improvements to the text, but it's still not quite there.