If Bi-Wiring is an option, should I choose Bi-wiring over single banana with free jumpers

My experience has been to use a higher quality single run of speaker cables with the same make for jumpers. Factor in the cost of the jumpers when choosing a line of speaker cables and you'll be fine. 

All the best,
Nonoise

Having rebuilt many speakers many 4 binding posts are BS internally jumped then cheap gold over cheap brass , unless the speakers terminals are directly dived highs and Bass from the Xover then it’s just a marketing ploy

that being said , you want = equal quality jumpers to the Loudspeaker cables with gold over Copper , if you can internally bywire your speaker cables that is the best way to do this .

One run of good quality cable with jumpers made of the same cable is better than 2 runs of an inferior cable if cost is an issue.

@alan60 

+1 

Get the best quality cable you can. Then later when you have exhausted other improvements in power cords, interconnects and direct lines... bet some good quality jumpers. I always try to approach one thing at a time in ascending order of effect, which also allows me to spread out the cost over a very long time... and experience each change to make sure it is cost effective. 

I suspect some speakers benefit more from biwiring than others; some manufacturers will recommend it.  Some cable manufacturers now make special biwired sets, so you have four connectors for each cable, so you only run the two cables--less visually objectionable.

I suspect that the more demanding and high-quality the system, the more benefit from biwiring.