Hmm. I'm thinking that the idea NSupport gave me, to have different AI's in different difficulties would be better for some of these.
Yeah. I guess it depends on what kind of game you are going for, creativity or survival.
Zombies: No thanks. I don't want potential-to-breed animals killed off because they were injured earlier by a creeper explosion. You could just fence them in...
Skeletons: Sensible, I like it. Cool. I thought it was good too.
Spiders: I thought they already climbed and hid in places to drop on you. I see cave spiders do it all the time. Regardless, I still support it.
Creepers: I don't think the most annoying mob needs any buffs... I wouldn't complain if them hiding was added, but if I had to choose, I'd say no to this idea. Ok
Endermen: Why in god's name would you want that..? No, no and an infinite no. Endermen don't seem to really have a use for picking up blocks, cause all they can pick up are lame and useless blocks, or decoration blocks.
Mostly you seem to not like how the mobs would be that much harder to defend agaisnt, which I guess I can understand.
Overall, for the Mobs, I think its kind of weird that they literally just sit around and wait for a player. Its like if there weren't any Players, the whole world would just be a waiting room for monsters. I thought they needed something to do that didn't involve the player.
Plus I rather think that most of these mobs are literally just a distraction after the first few days. You have great armor and you can kill basically anything without breaking a sweat. I wanted to have more of a challenge, more things to prepare for. So, the idea of making different AI's for different Difficulty modes actually compliments that perfectly. The harder the game, the smarter and more destructive the monsters.
I think I'm going to revamp the thread.