Alright, so i'm sure this will be a bit of a controversial opinion, but hear me out. I think that overall, evil has much stronger troops, namely Uruk Berserkers, Black Uruks, and most importantly, Olog Hai. Olog's offer immense speed, only really being beaten by Rohan riders and maybe a few others, on top of that, they are really tanky, and have the extremely overpowered ability to do area damage, wiping out hordes of units with ease. The closest thing to a Olog that the free peoples have are Huorns, which while strong, don't even come close to a olog's raw army destroying potential. So, what solutions are there? Option one would be to take away their area damage, although I think that would be a little extreme. Option two is Nerfing Olog's speed or health to give them more weaknesses. Option three is to make Ents hireable, ok so this may sound crazy, but I think it balances things well. Ents are some of the few things that can beat two headed ologs, but normally the two can fight on even terms. Even if Ents take less damage from non axe weapons, most players use infernal battleaxes or infernal weapons in combat anyways, so the ents arent that overpowered. I think this would be a good solution to ologs power, to bring something of equivalent strength into battles.