Jacob likes the simplicity of entries 21 & 22. I feel a logo should be recongizable if seen again, but not necessarily identify every letter/word in company name. The circle with a/b is nice and simple. I would lean towards #21 due to the proportions.
Hello!! I am happy you like it!!! if you want to submit some new versions of the logo rank my design in one of the top 5 places.. In the Top 5 mode only the top 5 ranked designers can submit new logos..
If you have any other thoughts / suggestions feel free to contact with me Thanks