The 5 Live lot are generally class. I like Bill Leslie, Darren Mann, Steve Bower, Simon Brotherton and Adam Summerton too.
Darren "and one thing I will say" Fletcher is the worst by a country mile. Matterface is proper crap but he at least tries to commentate on the game rather than pinning himself as some bastion of football knowledge like Fletcher, who also has the dubious honour of somehow managing to make Ally McCoist actually a bit annoying when he's paired up with him. He commentates like an annoying loud prat in a pub.