My absolute most hated ad is the Go Compare one and in particular the opera singer chap who I would love to run over in my car.
The nationwide ones have ripped my knitting for about a year now, each one worse than the one previous. The current ones with the "comedians" especially the fat scouse guy wants me to boot my TV in, and they do a radio version of it too
any ad with people singing and dancing, no matter what they are flogging gets right on my threpennies