Inspired by the recent thread on Japan, what bands are responsible for one of your favourite tunes as well as one you just can't stand?

For me:

One of my favourite
http://www.youtube.com/watch?v=g_z2AmEqyAI

and one of my least favourite - the audio equivalent of someone being sick in my face
http://www.youtube.com/watch?v=7d7DbXITzeE