I don't really follow sports anymore, so I don't even know who still works and who doesn't, so think of this is an "all time" thing...
LOVE
Vin Scully. I don't care if he's talking about baseball, or just three hours of Farmer John's Pure Pork Sausage, nothing says summer like Vin Scully.
Lon Simmons. Would be my favorite, and his dry humor makes it close, but damn it, there's Vin Scully...
Howard Cosell. Yeah, I know. But even dead, I bet he'd be entertaining.
HATE
Brent Mussberger. Pompous ass kissing piece of shit dork. Just makes my skin crawl.
Dick Vitale. Sorry, I guess I just don't get it. Personally, I would be embarrassed to be him.