The sad thing is there really aren't a lot to choose from anymore, given how many there were back in the day, from Bill Stephenson and Mike Toth on CFRB to Brian Henderson on CHUM.
Outside of The Fan 590 and TSN 1050 (and the anomaly of CKTB's Rod Mawhood, who has somehow survived every Bell Media cut), my vote for best sports recap person has to be Simon Bennett, the morning sports guy on 680 Newsradio.
He has a staccato delivery that cuts through the noise and is able to deliver a ton of info in a two minute or less well written half hourly segment. I'm not even a sports fan and I admire the guy's style. He gets a lot in in a very short time.
But Bennett isn't just a recap type. He's also the PA announcer for the Toronto Marlies (filling in for the Leafs when needed.) And he's also done commercials for Under Armour and Chapman's Ice Cream.
Don't know the man, but I admire his talents, which he displays on his demo reel below.