Which Oscar Wilde work should I read first?

I haven't done any pleasure reading in a matter of months, but I have tomorrow off of school so I really want to use the time to do just that =]. Anyway, I recently purchased a book containing Wilde's "The Picture of Dorian Gray", "Lady Windermere's Fan", "Salome", "An Ideal Husband", "The Importance of Being Earnest" and "The Ballad of Reading Goal." I want to read a book with some substance, but one that's still rather enjoyable and hopefully with a bit of tongue-in-cheek attitude. I don't want to trudge through it, because I'm in the process of reading both Hamlet and King Richard II for school, and I've also had to trudge though "Paradise Lost" and "Absalom, Absalom!" amongst other... headaches... earlier this year. Don't get me wrong, I love literature, but sometimes the brain needs a break from the super heavy stuff, you know?