Idle Speed. What makes it right?

TT5.9mag said
In the Holley super sniper tuning software, isn’t there a “target” idle rpm? I’m not familiar. But typically you have an afr target and an idle rpm target and you would adjust idle ve and ignition timing (and any idle modifiers) until the target is met. You can typically run a log and watch the trace. But again I am not familiar with the super sniper software. The actual rpm is subjective. Whatever makes your engine (and driver) happy. Typically a larger duration, big overlap cam likes a higher idle speed. Flat tappets splash oil so idle speed is a concern there. Manual or automatic trans is a concern. Idle vacuum for power brakes etc etc etc. when is it “right”? When you’re happy with it.

The variables are all easily set in the sniper software. The question is where to set them.

Maybe I should have broken it down to -
When setting the idle timing, what parameters do you look at? Vacuum, idle, surging, lugging off idle???
When setting AFR, What parameters do you evaluate first, second and so on? Idle quality, stumbling, Plugs etc.
When setting Idle speed, What is your primary consideration? Smoothness, vacuum, stumbling off idle, etc...

I understand that all parts must come together and that you will go back and forth to get it right. How do you approach the initial setup?