Bonnie/Chica: These two are practically the same, so they go under the same section. They both wander around the pizzeria until they get to your office, where they can be seen in the lights. If you do see them in the lights, just close your door. If your door and light don't work on one side, that means Bonnie or Chica have gotten into your office, and you're pretty much screwed unless you can make it to 6 AM. Bonnie and Chica also can't kill you unless you raise and lower the cameras, though they CAN pull down your cmaeras if you look at it too long.

Freddy: If you run out of power Freddy will stand in the west hall and do his song, at the end of his song the office blacks out and he kills you. If you don't move your mouse after the power goes out, he may play his longer song, giving you a longer time to survive.

Now on night 3 onward he'll start moving if you don't look at him on the camera long enough, so keep checking on him. He'll also go to your office through the east hall, and if he's in the east hall corner, close your door and keep it closed until he moves back to the east hall. He can only get in if you're looking to the left side of the office, and he can only attack when you look back to the right.

Foxy: Foxy will activate if you don't check on him enough, but you can just check any camera and it still delays him. If you don't check enough he will sprint down the West Hall and kill you. You can tell how close he is to leaving by how far out of the curtains he is. Here's all the stages.
Stage 1: You can only see curtains.
Stage 2: He's peeking out and you can see most of his body.
Stage 3: He's just about to leave Prate's cove, and he's leaning out.
Stage 4: The curtains are empty.
If the curtains are empty, close the left door IMMEDIATLY and then check the west hall or else he will kill you.

Bonnie: Show Stage>Backstage>Dining Hall>West Hall>West Hall Corner>Supply Closet
Chica: Show Stage>Dining Hall>Restrooms>Kitchen>East Hall>East Hall Corner
Freddy: Show Stage>Dining Hall>Restrooms>Kitchen>East Hall>East Hall Corner
Foxy: Pirate Cove>West Hall

Like the FNaF 2 guide, I used the FNaF wiki as help, as well as my own gameplay.
http://freddy-fazbears-pizza.wikia.com/wiki/Five_Nights_at_Freddy%27s_Wiki