Need Minecraft players help with enchanting for survival?

If I used every protection type, Projectile Protection IV, Blast Protection IV, Protection IV, and Fire Protection IV for diamond armour, would that be better than all protection IV diamond armour? I plan to use the armour for everything! Mining, nether and the end.

You can only use ONE protection enchantment on your armor, Unless done through an anvil or commands.
Also that would be WAY to time consuming and expensive. Just use prot. 4