Understandable, guess it ultimately depends on the feel, music, atmosphere, lore, and how fast you get items that’ll determine your stance on which zone you choose to level in.
I don’t like grinding through zones just for the sake of hitting end game. I want to enjoy the journey. Conceptually, I really like what they did where you can pick an expansion and basically enjoy the full story experience of it and hit level 50 by its conclusion.
I probably would vary which one I would choose for different alts to keep it somewhat fresh.