We like both of these. Here are some suggestions. Both are missing 1 aspect that if we can somehow tie into, it would be great. Intelligence. Maybe the growth in the bar heights does represent that. Is there something that can stand out. A light bulb is too much, just so you know.
In both of these #27 & #28 can you make the top arch of the Q extend a bit more to the left, just to make it clear that it is IQ.
From a disance the logo needs to stand out a bit more. Not sure how you do it, maybe a bit darker colors? maybe a little shadown/3d uplift? I'm not good at this, so don't take my advice verbatim!
Re: Entry 29. The bars look good. The Q, you were right originally. It looked better without the extended circle. Please put it back to where it was, but may be just a couple of pixels extended.
Can you please do a version of this without the 3D effect and also do it in a white background. Also if you could change the colors of the 3 bars to something more bright that would be great.
I am going to extend the contest by 2 days since we would like to try a slightly basic version of the logo as s well. Basically show the IQ 20/20 name but with a very minimal twist that shows what we do. Maybe a graph tied to it or on the side. Please rethink and try to come up with this option. Something minimal.