Hi Ray,
Thank you:-)
#6 looks "powerful" but the pictorial element A misses its meaning. I liked it more in #1 because there it was more obvious that it stands for A-letter. In other words: in #6 the audience might not recognize that this element pictures A-letter? I'm afraid they will take as an abstract mark. Therefore could you do some changes in #6 so it would be clearer that the company name begins with A-letter?
Best regards,
Bo