Personally, I like teh Gigabyte. But you can't go wrong with neither.
Gigabyte comes with 2x Lan ports (including 1x Killer LAN, 1x Intel) while the MSI "only" comes with the Killer port.
But the MSI can take 4 chassis fans, the Gigabyte only 3.
If you're planning to connect 4 chassis fans, you might wanna consider the MSI
Otherwise pick whatever is cheaper.