Hi,
You sound new, I couldn't remember the difference in stats for these armours but I would reccomend going for the standard 4 1) cheaper 2) faster to lvl and 3) the element combinations are suited for early game PVE. As these are early game armours they would need to be replaced soon. If you're very active probably in a week or two and they would be obsolete. If your training fields are well developed you can have the luxury of leveling the Torchflame Mantle+ as well. it would give you slightly better stats as it is a plus version.
For Torchflame Mantle and Riverstone Mantle, I believe both it gives you 50 enhancement points instead of the standard 24 for matching rare(1*) armours. So this is best used for enhancement, we still use these armours for enhancement now to enhance EB+ and epic armours.
For Wicked Wrath and Rocfeather+ they are mid game armours. I suggest leveling Rocfeather+ and doing away with Wicked Wrath non-plus. Use the ultra rare plus (3*) armours till you have enough strong friends in your friend list to start farming your first EB+ armour and then epic armour.
Good luck!