90A duet rail or 75A direct VRM for 13700K (maybe overclocking) ?

Hi, i plan on building a pc soon using an i7 13700K and i hesitate between the MSI Z790 tomahawk and Z690 force. There is like a 10€ difference of price between them (in france) so not significant.

The Z790 Tomahawk has a 16 duet rails power system, i don't really understand what it means but i saw the z690 force has a direct 18 phases power system, which i think is better from what i read ? However they say the tomahawk has a 90 A VRM while the force has 75 A.

So i'm wondering what is the most important for a potential overclock, direct phase or total current ? (i could also be completing mixing things up and misunderstood the descriptions)

Also the z690 force has a true debug display with digits, so that's interesting, but the z790 tomahawk has more 3.2 usb ports and one more usb-c port...

Thx in advance