Placement should always be as forward as possible to allow the most room to fish/net/handle fish ect at the rear of the boat. But that placement also has to allow easy access to the rods, and not by just the taller folks. There are alot of folks that can not install/remove rods from trees due to required reach. Any seats, lockers, etc that are in the way of being able to walk up, reach up/out and remove/install a rod without having to balance/lean that could be dangerous in rough conditions. Location/placement also has to do with how high your gunnels to floor are, again how far you have to reach. If you have a hard top /walk around boat, you don't want the trees in the way of access getting in/out/forward.
If you mention your boat, you might get some more detailed responses from experienced folks with your same boat.