Best speaker wiring

Reviewing some threads on speaker cables for my bi-wirable speakers, I have learned there are different ways of wiring. I was wondering which wiring is the best of the followings and why if possible, assuming the same materials and prices.

1. Single line bare wiring jumping with bare wires/jumpers
2. Double line bare wiring
3. Internally bi-wired cables with two connectors in amp end and four connectors in speaker end
4. Internally bi-wired cables with four connectors in amp end and four connectors in speaker end.
5. Wiring with two sperate pairs of cables

Thank you.