Thanks, Gritty! By my count:
DrPepper - 5
DireBear - 3
Edgeworth, Stickman, Burmy, Wallflower, Dan O'Mac - 2
Steelman, QCS, Gritty, NeoPrankster, Darknes, Sportsfan7 - 1
DrPepper cleaned up, with 5 names while DireBear followed with 3. No one was able to get 3 in a division, the most was 2 by DrPepper (in the South and West), Burmy in the North, DireBear in Central, and Wallflower, also in the Central.
At least 5 (I didn't bother thinking too hard) names are in use or have been used by professional sports leagues: Birmingham Vulcans (Birmingham Vulcans, World Football League), Buffalo Bolts (Birmingham [Thunder]Bolts, XFL 2001), Kentucky Stallions (Baltimore Stallions, CFL), Portland Grizzlies (Memphis Grizzlies, NBA), Utah Raptors (Toronto Raptors, NBA), with several others also finding use as minor league teams for various sports. The Steelheads could potentially join this list as the name of Seattle's NHL team.
Finally, and it pains me to say this, but the correct name of the team is the Carolina Reapers, correct? On the list you have Charlotte Reapers and I want to confirm.