I would be the enderman. Im slow and dont move much but can be quick if i want. I also prefer to use something to fight, anything will do. I also dont like to be looked at very much either so i guess theres another reason... Im the tallest person in my family for my age and prefer dark places over light such as the end over the overworld or aether...
Herobrine is real! I had 3 worlds yesterday with random floating blocks of moonstone. I found an abandon mine with redstone torches placed around... if thats not herobrine i dont know what is...