Pic related is mine. Such a solid movie. From being a critique of consumerism to racism, to an action movie, to comedy at some points. And while it might not be scary in the traditional sense, the opening scenes detailing the chaos around a news station trying to remain calm during the end of the world are done pretty well and set the mood for surviving the apocalypse.
Probably the first Nightmare on Elm Street, I love how it has scenarios like "the stairs are quicksand now" that actually feel dreamlike.
The sequels for the most part went in a more comedic direction, but I can appreciate that too. Dream Warriors and The Dream Master are my other two favorites in the series.
I've only seen bits and pieces of the first movie but Freddy used to scare me as a kid.
This is the only Freddy I have room for in my heart:
He's so cute, what a scamp.
I was thinking earlier this week that to kids these days (
) Freddy means Fazbear, not Krueger 
You should watch it, it's an absolute classic.