Have my new VP-180, but my speaker wire is WAYYY too long and am looking to get 12-gauge bulk from axiom.

Question is whether to use banana plugs or spades to my receiver, an Onkyo NR-801. Any preference? better/best method?

Am also going to upgrade all speaker wires to other speakers so I can just replace the speakers as needed and not constantly rewire. Am waiting next year to get the QS8s.

Onkyo TX-NR801
Pioneer CS-J725 4-way fronts
VP180v3 center
Bose 301 Series 3 surround
Sony subwoofer