I disagree. Having watched both the UK and the US versions I've found the comedy voiceovers for the contestants on the latter far more amusing. Especially the random things they shout before starting the event. There's in-jokes as well if you stick with it - always someone with the surname Babaganoush for example.
Captain Tenneal and Guy LeDouche certainly beat Craig Charles' lacklustre narration.
All of those happy slappy jappie chappies!