I've never actually heard any sort of Carlton Palmer punditry or commentary or whatever the hell he does, but after that Paddy Power advert where pops up out of that mans bath...well I'm not sure I'm much of a Carlton Palmer fan after that. I don't think listening to him sounds wise.
Clive Tydsley, I believe, is a Manchester United fan. I think he should be commended for how he puts that aside and is so staggeringly pro-Liverpool during our games, he gets very excited when we score, praises Rafa and the players, constantly brings up the history and the pride of the club, and never shows any of the bias against us that you'd expect. I think he has a good voice for commentary too.