Now we are talking:
![](http://d8u1nmttd4enu.cloudfront.net/designs/22701879~bc7432b163c0377c0e72d8d42f6208c532b1e3f0-original)
I think it's a bit busy, but finally a creative one.
i vote for this one as well !
like the pcb pattern. nice touch. shows the designer knows a bit about electronics. The others are just 'font work'...
MrDunne #16 !!! has my vote. and it would look great on black or white background !
#18 .. the font for 'feedback' is just ... plain wrong.. that's a font for a football or baseball team...