I think the Mets "Gary Keith and Ron" are excellent, and they're not afraid to kill the Mets or have fun with the broadcast. They don't play their experience over the viewers.
The Red Sox announcers are pretty good as well. The subs for Jerry Remy have been good, and they do a nice job of calling the games without too much "homerisms", although like most announcers, they share the joy when the Red Sox score/win.
The Yankee TV announcers (it's almost a pool of announcers) are decent, and far better than their radio broadcast, which is totally unlistenable. Their ex-player pool give good insight into the game, especially Leiter and Cone.
I always enjoy a chance to hear Vin Scully do a game when it's on KTLA (are they still on KTLA).
The other announcers I do not know well, so I won't comment. I do like Gary Thorne, and if he's doing Baltimore games, then Baltimore is lucky. He's a great announcer of a baseball game.