If we're talking Wrangler there's 3 basic models then option packages based on those models:
Sport (Sport based option packages: Sport S, Willys, Big bear)
Sahara (Sahara based option packages: Freedom, Smokey Mountain, Chief, Winter)
Rubicon (Rubicon based option packages: Hard Rock, Recon)
Rubicon based models will have a front D44, all others have a front D30. Rubi models also have front/rear lockers, 4:1 transfer case, numerically higher gears and electronic sway bar discos.
So, IMO, if you're looking for the most capable without major mods, go with a Rubi model.
If you want the most capable, then start with whatever package gives you the options you like and start modding from there.
Our next build will be a 2018 base JK Sport at about 30k price. We'll then add about 20k in lift, steering, axles, gears, lockers, wheels, tires and armor.
So end price will be about the same as a Rubi, but it will be more capable.