It’s been too long since I’ve watched it to pick out great “typical” episodes, sadly, but Hush isn’t actually a poor choice. There’s some character stuff that’s funny for fans, but quite a lot of it focuses on The Gentlemen and since it’s a ‘silent’ episode it’s more atmospheric than reliant on the Wheadon dialogue.
That was literally the episode I was given to watch; I could appreciate it on some level, but it was obvious that the in-jokes and references in the episode were utterly lost on me.