A few of my pet hate adverts are:
Confused.com where the woman with about six hairs on her head is singing, Mr & Mrs Kipling, any Halifax ones, the blasted Sainsburys ones with that woman with the fixed, idiotic smile and annoying family, and the Vicks Sinex one with the man holding that baby.
I used to love that Oreo one where the cute littleun pours milk on his Oreo and goes haha to his brother