I like 10 and 13. 13 especially.

Depending on the color of the background, 7-9 are the ones I prefer. Some of the others just feel too busy.

I like 1 and 4. they are pretty and I really like the green color on 4.

Hrm... well, I like #3 a lot, but it would depend on the background. #11 is very cool, and I think the effect on that one looks better than the effect on #12. And #7-9 rock - the effect on those three is absolutely lovely, and they stand out quite nicely if you're going for that kind of thing - but which color you go for would kind of depend on the how the site looks, really. If you're sticking with the blue scheme, though, then I'd say either the purple if you're wanting it to stand out, or the blue if you're wanting it to blend in more. The blue/red/silver thing just looks a bit too Fourth-of-July-ish for my tastes, sorry.

I think the splotchy coloring on the purple and red versions look nicer than the vertical effect on the blue coloring, though. Is there a way to do a splotchier blue version?

I think I like logo 3 the best, followed closely by 9, 12, and 13.

Whoops, I meant 11 and 12, not 12 and 13.

okay, well if its on that particular background, i'm voting for #1. it looks really nice I think