Gotta go with Tom Stocker.
I admit, I'm biased. I interned with him my senior year of high school. But we lost a good one when he got out of the biz. Aside from being a super-nice guy, "Stock" was able to do more with less. He would record his pre-game show interview with a coach or player on a portable Marantz cassette recorder, then climb the stairs & ladder(!!!) up to the pressbox, set up his minimal equipment, hang his "crowd mic" & WREC banner outside of the window & secure it, do a pregame show in which he would play his own flawless, unedited interview (no equipment to edit it) from the booth over the air off of his Marantz unit, call the entire game all by himself (an amazing feat in and of itself), do a post-game wrap, then call Leonard Blakely back in the studio and record a wrap for the next day's Morning show. He did this day-in and day-out, never cut any corners, and had a great attitude. He was truly loved and appreciated by everyone in the Chicks organization.
What would always amaze me most, would be the games that either were a blowout or weather-delayed. He could always fill time with his stories and his knowledge of the game. Like Vin Scully out here in Los Angeles, Tom, if needed, had a story or some interesting, exclusive team info for any occasion. He rarely repeated those stories. Tom's material was always fresh.
He'd also have to interview sponsors and "celebs" that the Chicks would bring in for a nightly promotion and Tom would interview them within the context of the game flawlessly. When I worked/programmed in smaller markets, I would butt heads with salespeople all the time when they would want to do this. Too much clutter, not of any value to the listener. That Tom even did it was amazing. That he did it consistantly without slowing down the pace of his game call was nothing short of spectacular.
I became a Stocker fan by listening to him call Ole Miss Football. One time I asked him why he no longer did those games, and he told me that he was let go from his duties as Ole Miss' PBP due to the school's desire to use someone that sounded more 'Mississippi'. Now, some people would have been irritated to be asked a question like that, but he answered my question without expressing any bitterness towards the school. Just a class act. While the current PBP team are Mississippians (and certainly sound it), I can tell you as an Ole Miss alum that I'd much rather listen to Stock and his Illinois accent. And that's not my personal bias talking either. Stock's just a better talent.
Knowing Tom, he'd be way too modest to agree with that, nor would he ever say what I am about to say. Tom was/is a major-league, major-market talent...period.