*posting a thread in the "WhoWouldWin" subreddit titled "Randland vs Scadrial"*
Round 1: Zen Rand (after revelation, before last battle) vs Mist Vin (Feeding on infinite metal sources) - Both at their top tiers, they should, by my estimation, be matched because of the rays of power vs seeing the future.
Round 2: The armies of Randland vs The armies of Scadrial - Aes Sedai, Asha'man, dragons/cannons, vs koloss, mistings, mistborns.
Bonus round: The Lord Ruler and his armies have to take on the Dark One, and his armies. How well do they fare?
Other rounds would be cool if you come up with more.
EDIT: Since people seem to think that RandLand would stomp, how would Vin and crew, with/without the Lord Ruler, fare if they had full knowledge of Rand's abilities and 6 months to prepare?
I think that while Vin in the state you mention might be able to give a good fight to Rand, overall, Randland winds. Channelers are more powerful and versatile than most metalborn. Randland has far better generals; everyone on Scadrial is basically still winging it. I hand this one to Randland, unless Kelsier can pull off some improbable assassinations before the whole thing begins.
Would the time reversing properties of balefire remove the ability [of atium] to see the future?
Boy, this one is a tough call. Mixing cosmologies is tough. If we're IN Randland, then atium would work by reading the pattern--but in the cosmere, it looks into the Spiritual Realm--where all times, locations, and possibilities conflate. Either way, I'd say Balefire could counteract atium--but it would be tricky to use correctly, as you'd basically have to balefire some object that the atium burner was factoring into their plans very soon, tripping them up and catching them unable to adjust to the new futures quickly enough.
Not too long ago you told us atium works in the Cognitive - to quote you in reference to how stronger atium burns, "However, there's a certain breaking point where you kind of crack the whole system, peer straight into the cognitive realm, and kind of have a "It's full of stars" moment."
Are the two replies still compatible?
I meant Spiritual there. Sorry. I deal with the cognitive so much in the books, and Spiritual so infrequently, I often have a silver/tin moment when my fingers just type the thing I'm used to typing.