well i got advise...
well unlike u i dont have neighobors well ones that live far down the road from me...but if i were you this is some things i would do for revenge:)
1. GET A FREAKING DOG! duh! a viscious killer dog! if your apartment dont allow big dogs then i guess that one doesnt work
2. If they are having parties at 1 am they most likely will sleep till late in the afternoon...u shuld totally sneak into the party sneak into the boiler room and turn off their water off and cut there power wires
3. If they prank call then u just act friendly and try to start up a nice conversation or start talking about the sickest stuff ever then they may never call back
4. If they sit by your window and scream fill a bucket with dog shit, puck, mud, worms, ranch dressing, and the grossest stuff you can find and mix it into a ducket when they start screaming by the window open it and throw the mix all over them and hand a sing out saying (WAIT WOULD YOU LIKE THE SECOND MIX MADE OF?)
5. If they throw rocks at your windows then you should most likely buy an airsoft gun(machine gun airsoft gun) and pelt them with little plastic bb's (p.s. the pellets sting and leave big red welts
6. When they ding dong ditch you should tape a tack onto the doornail so when they press it the tack sticks them or electrifi it
well that all the info i can give you because i do not know the other stuff they do if laterz and trust me the stuff will teach them a lesson and it will work