new 2500/3500 rebel is more comparable. diesel option, rear locker standard and similar suspension to the power wagon but with more payload capacity. The Tremors I think have a torsen front diff but not 100% sure, similar to the raptors. Power Wagons have front and rear lockers standard plus winch standard. The new Rebel can come with a winch but not with a diesel.
Diesel options: Tremor or Rebel
Gas options, Tremor, Rebel and Power Wagon. If payload isn't that much of a concern, Power Wagon all day long. Disconnecting Swaybars, F/R lockers, Winch, and can fit 35s stock no problem. level, 37s no problems.