I agree with Highhigh, here.
I use Bananas because I knew I would be futzing with my gear over the first year or two. I bought an inexpensive but good quality set. They allow electrons to move from points A to B. That's all they need to do. Same with Speaker Cable.
The cabling you buy does not need to be fancy to do the 'job.' The definition of the job is to conduct electricity. If you have cabling that matches the Impedance load of the speaker and accounts for distance runs, you are fine. 12AWG is absolutely suitable for a 4 ohm load, up to around 40' of cable, I believe. That is enough for connecting Surrounds or Rears in a medium size room depending on how you route the cable.