Let me see, in no particular order, except the top one is number one.

Mariah Carey - All I Want for Christmas Is You.

Whining children that cannot accept that no means NO!!!!!

Next doors dog barking at the drop of a hat.

Fireworks (bangers mainly) before or after 5th November and before or after 31st December.

Go Compare, Go Compare (close join first with Mariah)

Odd one to describe, but any thing that does the following in the same manner a dropped circular tin lid hits the floor and then dances in a circle, the noise cuts me in two.

Almost the same as above, anything that when put down bobbles back and forth and makes a similar noise to above.

Tony Blair's voice.

And;
A particular co-work when he starts a sentence with, "You know what I think"

Matt

The very first note of the tune that introduces the daily, annoying, British Sitcom on my Radio; "The Archers".... ...!

Fortunately my thumb hovers over the "Off" button on my Remote, in readiness, and prevents it from modifying/destroying my brain!

Suffer, you lot out there!... ....>>> http://www.youtube.com/watch?v=wNEawM6vZf4

Paul... ... ... ...!

oh forgot to add the following songs to my list:

my mom singing.
me singing.
justin bieber(i HATE him. (i may get killed by a mob of angry girls now...))
some raps,i once heard one about being stuck in traffic,just stupid!

Hey!! , I love Whitney Houston "I will always love you"

I can't hear sirens , I really hate them
I cover my hears every midday at 12pm where my local fire station play that darn siren   

Nothing else 

I hate the sound of a slamming car door more than anything.
Also the sound of the phone ringing (cell or land-line) bugs me.

Television
Radio
modern music
most music for that matter
Loud cell phone ring or notification tones

Ha ha, I had a college prof long ago who would put his hands in his pockets and jingle his change while lecturing.  Not sure which was more annoying, his change jingling or his lectures, tho.

To have to listen to that 3x a week for 4 months.  Chee.

And as for whooping audiences, yeah, there oughta be a law.

And hey, what about whatever music they play at the food store?  Whoa, are we in a dance hall here?  I'm tryin' to think food.

I tried demanding equal time by suggesting a little Black Sabbath, but noooo. 

Anything uttered by any Leftist politician...