Darn I've been found out!
Seriously though, living in a corner terrace / any attached abode it's a fact of life there is going to be noise. You'd be deranged to think otherwise. What I object to is the unsociable hours and sheer volume of the noise. Sure if it happened every now and then it would be tolerable, but everytime they are home and after polite requests to keep it down it becomes in my opinion totally unacceptable.
The neighbour on the other side is fine. Sure he makes a noise, you can regularly hear his surround sound and he occassionally will play a song really loud (bizarely usually only one song) and occassionally you can hear him singing (he has his own band). I have no beef with that as he doesn't do that on a regular basis and it' never been past 11pm when he does. He has certainly never caused me any sleepless nights or woken me up at 3am.
In my opinion it's all about balance and respect for other people, which Mr Inconsiderate Tw@t is severly lacking.