To get Exynos or Snapdragon Note 4?

I'm getting brand new Note 4 but can't decide which one to get, since i have both options to get, Snapdragon 805 is 32bit and Exynos 5433 is 64bit. Is Exynos one better for future updates, and how is Snapdragon handling Lollipop or how it will handle Marshmallow?

Thanks

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