nobody's mentioned chip caray yet, so i'll go. he's the main tbs guy, and i had the pleasure of listening do braves games for the last few years, and he's not horrible, but he is annoying. he rambles on and on during games, and never knows when to shut up. plus, the dramatics are off the charts with every call. he's nothing like haray or skip caray, both were great broadcasters, with their humor interjected.
steve lyons is another bad one, he used to do fox saturday games for a while with thom brehhann (btw, what's with fox and great announcers' sons?), and i will never forget the time when they played some opera nonsense during the ninth inning of the game as background noise. that was the worst ever.
enough people have said why joe buck and tim mccarver stink, so i won't add much. but did you know joe buck would rather watch 'the bachelor' than baseball games? i think it's time for fox to plug a new baseball lead that will be doing games every week.
too bad we have more of these types coming in baseball and the only great one left is vin scully, with haray kalas now gone.
talking about tony kornheiser, he's good on pti, but he's not really a booth type. he needed to go from the mnf booth.
i would say the worst duo ever was bryan gumbel and chris colinsworth. boring and just plain awful.