1. Ponies - ... no need to state the obvious.
2. Girl's Generation - and ANYONE, ANY GIRLIE GROUP that either looks or sings like them.
3. Rap music - Well, I do find a few likable, but still I dislike the majority.
5. Suzumiya Haruhi series - just why it is so popular, I do not understand...
That's it for now, but I may be back with more.