If I remember correctly, white walkers can be killed with fire too. The size of the armies in LotR would overpower any of the armies in GoT.Drakythe said:I'll grant you that if nothing in the LotR universe can kill a white walker, it makes it pretty hard to win a knockdown drag out brawl.Nezuja said:The key here is the assumption that only Dragon Glass can kill White Walkers and there is no other way to stop them. They would just spread like a plague and win by shear undead unstoppable numbers.
However: Working with the internet and my limited knowledge (I don't have the headspace for another fantasy epic at the moment, so I've not read GoT) Dragonglass is just obsidian, which exists in Middle Earth (since volcanoes exist). I'm pretty sure someone would have obsidian arrow heads, leading to several white walker deaths.
Additionally, Valyrian Steel is supposedly another of their weaknesses, which is a sort of magically forged steel created in Westeros. I'm just guessing, but I'd be willing to wager that elf-made blades would at the very least injure a white walker due to the magically nature of the blades.
As for the Wights (Reanimated dead caused by White Walkers) yeah... they'd be a problem, but dragon fire isn't exactly unheard of in Middle Earth.
I admit the White Walkers would make it a lot more interesting, but allowing for some hedging I still think LotR would win in an all out war.