[SOLVED] Need help choosing between these PSU

[Xerhat]

Hello!
I'm trying to choose between these 750W PSU...

Corsair RMx Series RM750x 2018, 750W ATX 2.4 € 124,99
Corsair SF Series SF750 80 PLUS Platinum 750W SFX12V € 144,90
Seasonic Focus PX 750W ATX 2.4 € 139,90
Seasonic Prime PX-750 750W ATX 2.4 € 169,90

I'm not sure if I missed something but I'm having trouble seeing which one might be better :/
Hope you guys can help me

 

[Vic 40]

The RMx will be a good choice and even cheapest so would be my pick.

The SF750 would only make sense if you would use a very small case.

Don't see the premium in the other two looking at prices.