Component Selection Help

I'm looking between the following components but can not decide due to their similarities, so I thought you could help me out!

Mobo: ASUS Z170 Pro Gaming Mini itx vs Gigabyte Z170 Gaming 5 itx

AIO Cooler: Corsair H115i vs NZXT x61 (Heard that they both can get noisy? Can replace the fans if needed)

PSU: Corsair RM650x vs EVGA 650 G2

M.2 SSD: 950 Pro 512gb vs sm951 512gb

Many thanks!!