During the course of Sunday's game thread, there was some talk of various broadcasters and opinions were expressed about their merits and liabilities (namely, the usual Joe Morgan hatred).  So, my question - who do you enjoy listening to and why?  I'll go first.  One of the game's greats is Vin Scully (no-brainer there).  Why?  For me, he fits the bill in four categories -
1.)  Easy on the ears - Vin has a great and distinctive voice.
2.)  Calls the game as it is happening - This is the department where many guys lose points in my book.  When I am listening to the radio, the announcer is my eyes (duh).  But many talk about topics other than the game to the point where the listener doesn't know who is at the plate, what the count is or even how many outs there are in the inning.  This is usually at its worst during the visitors' half of the inning.  Obviously, this isn't as important with TV because I can see for myself and read the game info running at the top of the screen.  But many guys don't seem to know (or care) that their audience has expanded because of XM and MLB.TV and that some listeners / viewers might want to know what is happening when the opponent is at bat.  This leads directly to my next catagory.  
3.)  Good information / color - Vin has great little tidbits about players, both the Dodgers and the rivals.  He can weave it into the broadcast while still keeping the up with what is happening on the field.  And it is fresh.  For instance, how many times have you heard that Yadier is the youngest of "the three catching Molina brothers"?  Really?  I did not know that, even though you mentioned it the last time he was at bat (and during last night's game and the night before that).  
4.)  Respects the opponent - Vin can call a game and make it exciting without excessive "homerism" for the Dodgers or snarkiness for the adversary.
I like several others, some individuals, some teams, but few bring all four qualities to the table quite like Vin Scully.  For me anyway.