What is the best way to plan a router setup to prioritize traffic?

Question

Mikrotik

The following segments: Computers, VoIP, guest WiFi.
How would it be better in terms of performance and priorities for these segments to build router ports?
1. Just divide the ports by bridges, for example: 8 physical ports + wireless - bridge1, for computers; The second 8 ports are for sip and voice media, and guest wireless in the third bridge?
2. Divide these bridges into three more VLANs?

The question is that I don’t remember which scheme would be more correct for further setting the priority for traffic: VoIP is the highest priority and a fixed dedicated shpp, then below the computer, then the guest Wi-Fi.

Answer 1

Configure prioritization by TYPE of traffic, not by ports.