I actually don't mind Mark Sidebottom that much - at least if your listening to him, it means the BBC are showing some GAA. For me a lot of commentators, especially local ones, seem to try be mimics of the greats like O'Hehir and Muircheartaigh - at least Sidebottom has his own style. I know it mightn't be everyone's cup of tea, but he sounds professional and often works well with his co-commentator.
As for the worst, it has to be Owen McConnon on Radio Ulster. He is appallingly bad at actually describing to the action or giving the score, for example he will say that someone is through on goal, but won't say who or at what and then say "oh what great save", leaving me screaming at the radio "Who, where?". Whenever something exciting happens, he normally just blurts out a load of excitable noises and it's left to Brian Canavan to describe to the listener what actually happened.
As for the worst, it has to be Owen McConnon on Radio Ulster. He is appallingly bad at actually describing to the action or giving the score, for example he will say that someone is through on goal, but won't say who or at what and then say "oh what great save", leaving me screaming at the radio "Who, where?". Whenever something exciting happens, he normally just blurts out a load of excitable noises and it's left to Brian Canavan to describe to the listener what actually happened.