Being that we have the ROC,POC, Resolute and 25th, how do we decide which to use?

Here's what I plan;

25th Anniversary; These are the Original Joes. No explanation necessary.


ROC/POC; Most of these figures will be used for my new GI Joe International. For Example;

ROC Hawk; General Quaid, CO
ROC Sgt Stone; Sgt Stone : Security officer
ROC Duke; Captain Channing : Company Commander
ROC Heavy Duty; Sgt Mugabe : Heavy Weapons Specialist
ROC Ripcord; Sgt Wayans : Advanced weaponry
ROC Cobra Commmander; Carnage : Cobra General and Intel Specialist
Roc Dr. Rex; Dr. Rex : Cobra Science Officer.

POC Spirit; Billy : Tracker and survival specialist.
POC Dusty; Schamal : Desert Expert
POC Recondo; Bear Trap : Jungle Expert
POC Duke; Snake : Jungle commando
POC Beachhead; Ruckus Urban: Warfare Specialist
POC Storm Shadow; Thuggee : Assassin

Resolute;

Resolute Stalker; Sgt Jean-Jacques : part of GI Joe International.


These are just examples. the reason I'm gonna do this is I'm tired of getting a Duke, Storm shadow, Snake Eyes and Storm Shadow every wave. So I'm trying to expand my Joe Verse using all these different Versions.