What's your favorite Boon and Hex?
The Boon is easy: The Swamp's Gift.
The Hex is tricky. If everyone knows all about them and it's even handled for you like in a computer game, then Envy; it's a very exotic penalty, one of the things that made doing Hexes look good. However there are other vantage points. As I've said elsewhere, it's bad that Hexes are so complex, and since they had to be so complex I shouldn't have done them, even though we had a lot of fun with them; furthermore the ones that say "continued on next card," well that's so ridiculous, what was I thinking. So, Envy, that crazy complex thing I regret. Surely I don't pick that one.
The Hexes would have been okay if they had almost all been as simple as Greed / Plague / Poverty, like how the Boons are almost all that simple. Attacks are just too wordy. "Discard an Action or Treasure" is so simple; but you can't just say that, it has to say "If you have at least 5 cards in hand" and then "(or reveal you can't)."
So anyway, my favorite Hex that was reasonable to do, I'll pick Greed.