I think this thread was a useful exercise because even though all the reasons are usually mentioned at some point somewhere (and often in the arguments/discussions) it's hard to get a clear picture of why someone would choose to not accept the most widely accepted choice of recovery program.
This puts it very concisely, and like you said, it's an individual choice based on individual reasons, and in no way invalidates AA or the people who choose AA. It certainly helped me to clarify in my own head. Thank you.