Green,
We like entry #24. Let's try removing the dot in the letter A and replace with a traditional line or something else. The halo is nice, but can we make it more silver less gray? Can you make the halo glow? Also, change the blue color to a lighter blue similar to entry #6 or #75. We have a tag line: "Redefining healthcare solutions". Is it possible to use the tag with this logo?