[jimmaswell]

In most of those cases there's no point thinking of them, just type the first one that comes to mind and move on

[gmu3]

I hate poorly styled code. Edit: I don't know why I'm being downvoted for this. That kind of mentality inherently churns out bad code.

[jimmaswell]

They're all inconsequential to code quality except for some like i++ vs ++i which isn't even style, it's syntax. preincrement before, postincrement after, not hard to remember

[gmu3]

Syntax and style are tightly coupled in Python. It's not hard to remember i++ is the same as i+=1 or that if(bool) { can optionally have a line break between the guard and the brace. In other languages, you have more choices. If you have more choices and just type what comes to mind first, you're going to get stylistic inconsistencies.