My biggest influence on coding style is:
"If code make reviewer puke, code bad."

In all seriousness though, I think the biggest influence is seeing messy code and not trying to replicate that.
I think every code file, however ugly it is, tells you a story. Maybe the coder was less experienced, maybe it was written during crunch or the coder is an enterprise software engineer who has to make a factory for everything and everything is generic.
In my opinion there is no perfect code style. You do what's required and hopefully in your best ability, and, as a bonus, think of the person who has to look at your code next...

For me it's kind of hard to tell whether my code is good. I have no reviewer in the company, which brings the risk of writing code so only you understand it... but so far it has worked and I've definitely seen worse than my 1 year old files. 😄