Which mobo would you choose?

I have a b250 mobo but recently found a sweet deal on a 6700k so I went for it now I would prefer to have a Z series board. Which mobo would you choose between these two? I can get both new for $120 each. Thanks!

Gigabyte Z170 Gaming 7

https://www.newegg.com/Product/Product.aspx?Item=N82E16813128835

MSI Z270 Gaming M3

https://www.newegg.com/Product/Product.aspx?Item=N82E16813130971