I first read Catcher in high school as required reading, and fell in love with it. 

The same copy lasted me just under a decade, until I had an unfortunate extended psychiatric event and lost the book in the process.

That bit of information probably says a lot about why I fell in love with the book in the first place: when I first read it, I was also a sad as fuck teenager, burdened with a mind that was going downhill and easily pissed off by pretty much everything. The book came into my life at the right time: when I needed something to hold onto and feel like it wasn't just me.

I remain mentally ill - I always will be, as that's the nature of my malady. The overarching thing of the story is that Holden is relaying it all from where he's staying in a hospital, so, given that, I remain attached to the story despite how I'm nearly twice Holden's age now.

Most of my classmates hated Holden. I couldn't understand why they were so focused on the surface of his flaws and didn't give much thought to everything that's going on with him that causes him to act and think like he does.

In terms of misogyny.... teenage boy, written in the 50s, attending an all-boys boarding school. What else needs to be said. It's an artifact of the times. Use your brain with a critical thinking eye and you will be just fine.

Also, is he egocentric? Idealistic? Hypocritical? Sure. But that's a normal part of teenage development. 
And he's just a messed up kid.