I dream'd there was an Emperor Antony.
I'm only two plays into this project so far, with 40-some plays to go. But there's a clear favorite already and that's Antony and Cleopatra. All's Well that End Well seemed kind of frivolous and the characters tended to pontificate on weighty matters to no real effect. There's no shortage of pontificating in this one, mind you, but in the context of the play it seems to work rather well.
Even as a Shakespeare novice I pretty much knew how this one ended, except for some of the nitty gritty details. I have to admit that I expected the ending to be rather melodramatic and perhaps even sappy, but it was executed pretty well.