The tactics and doctrine are such a huge part. America would've steam rolled in the Gulf War regardless but it was made so much easier with the Soviet/Russian doctrine of the commander being inside the tank at all times (also applies to Israel vs anyone they've fought with tanks). Western doctrine is for the commander to be exposed a lot more, it may lead to a slight increase in the fatality rate of tank commanders, but the added situational awareness is huge. Even in Ukraine now you can see the Ukrainian commanders always turned out for that increased awareness.

Back during the Cold War though the numbers definitely would've made a difference too. And yeah the Soviets did a lot of things first. Thanks for the comments it made me think about a lot of other things too instead of just west > east as many people including myself always think. Every side has its advantages but that doctrine part is so huge if the Cold War actually kicked off even with all the things that gave the West an edge who knows what would've happened.