I am expanding my "farm" from 3 ants to 12. What would the best way to power these units? Not asking about PSU's but distribution. Which option would be best?

1) 120vac 20amp circuits, 2 1000 watt psu's per circuit. I would need 6 20amp circuits

2) 240v 30amp circuit with PDU, I could run 11-12 miners on one circuit

any other ideas? Also, is there any difference between a power strip and a basic PDU?