Gigabyte z87x-UD4H vs ASUS Maximus VI Hero

Ali_uae

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I can't choose between these two. I know both are good. What is the difference?
CPU Cooler will be CM Hyper 212 EVO & RAM will be Corsair Vengeance PRO 2x4GB. I don't want any fitting issues you know what I mean? Please help me out. :) Thanks!