Which is better AIX or Linux?

I'm curious to know, when it comes to choosing between AIX and Linux, which one do you believe is the superior operating system? Could you elaborate on the key factors that differentiate them and which one you think would be more advantageous for businesses or individuals to adopt? I'm particularly interested in hearing your thoughts on their performance, security, and scalability, as well as any other relevant aspects that might influence the decision-making process.