I can't speak for specific editions, but as for content, I really enjoy Shakespeare. I have to admit, I did not much care for the histories (I never could keep the Henrys and Richards straight). But I enjoy the comedies, and some of the tragedies. From my school days, I can still recite all of Act 1, Scene 2 of Twelfth Night by heart
My favourite comedies are A Midsummer Night's Dream, The Tempest, The Taming of the Shrew and Twelfth Night. My favourite tragedies are Othello, Hamlet and Romeo & Juliet.