I've been wondering if anyone could give some advice about which Allies I should focus on upgrading, From using rare souls I've managed to collect a few 4* allies with all similar stats. Here is the list, if anyone has any experience using any of these allies and whether any of these are worth upgrading, which taslimans have been the best for you, that would be greatly appreciated.
4* Warrior Axis Bomber boy lvl 1
4* Warrior Pyro solider lvl 1
4* Warrior Troll lvl 1
4* Warrior Wicker man lvl 1
Thanks in advance for any advice