I really hope they beef up Endermen, and make the hunger bar deplete faster on higher difficulties. The new combat system basically makes it so that the only way I die is when a creeper catches me by surprise and detonates next to me when I have no armor. I play on Hard, so that's sad.
Endermen are fun, they're a challenge to kill, but they aren't dangerous. I have yet to get killed by one, the most I've been hit by one is twice. And their water weakness on top of burning in daylight, makes them twice as vulnerable as undead and total pansies compared to creepers.