I've only coin roll hunted around where we currently live, since I didn't start doing CRH until a year or so ago.
From a bank roll perspective, like Loomis rolls, I think it just depends on where their distribution centers are. All the banks (mostly) order from them or Brink's or some other third-party service, so I don't think it really matters which bank branch you get it from, so long as they are in the same general area.
For customer rolls, I've had luck in various locations. In the yuppie/upper middle class area, the coins tend to be newer, but I did once get a 40's and 50's
Wheat cent dump. The best pennies, for me, are actually from the less affluent areas, like smaller towns that are a little farther away. That said, I did get 2
Indian cents cents from a more commercial area closer to the city. So I guess it really depends, but I try to hit all those areas regardless. Maybe not the yuppie area so much, but certainly the others.
Cheers!