Oh without a doubt - British Gas. Talk about being bombarded, it's bad enough on the telly, but even worse on commercial radio - extremely irritating. In fact every time it comes on I deliberately switch stations, that's how much I hate it!
and (to top it off even more) ever since I saw the complaint on BBC Watchdog where their workers were deliberately breaking into people's homes to fit payment meters (even when victims were not British Gas customers) I detest them even more - **** bags!
Si thee