Piper
I don't have any Dakota time but I have tons of time in various other Pipers, e.g., Seminoles, Arrows, Archers and Cadets, and I have 182RG time. 182s are SOBs to land properly without a somewhat aft CG. I met only one person throughout my entire flying experience who could land a 182 consistently well; everyone else, including yours truly, almost always landed flat. Compare with Piper, which are more friendly to land and make excellent instrument platforms. (In all fairness, the RG was a good instrument airplane.)
Piper flaps with the manual Johnson bar are relatively idiot-proof compared to Cessna electric flaps. On the other hand, Cessna high-wing fuel management is relatively idiot-proof.
Two reasons to consider 182s are they indeed haul a ton with little brainwork on loading, and they are better suited to soft or rough fields than Piper.
Having said all that, my $0.02 choice would be Piper. Good luck and best wishes with your choice.