I like the Barclays one, with the guy that always had accidents happen to him, like where he's playing with the putting machine in the office and the ball fires back at him and smashes a TV behind him and he really ducks. The one too where he's leaving a message for himself on his answerphone and says that his gf is out with 'the old duffers' for the evening and he gets home she's sitting there with her parents! The recent one is comical too where he's holding a lap top whilst talking to his boss who is swimming, and some water splashes on the laptop and it explodes. I love the expressions he does, he plays that part well.
Like the cute Andrex puppy one too.