RE is hard to beat there. rear brake line, LCAs, and sway bar links. granted zone does include shocks which needs to be changed when lifting. so I can see where a novice lifter would go for the zone cause you only have to change leafs, coils and shocks which is very straight forward.
I would say zone would be more a noob mall crawler lift with some off road capabilities and RE would be more an off roader with experience lift. just my opinion