Would just like some opinions on what are the best spark plug wires / leads to use? or what are you running in your rig.

I have a 4age 20v BlackTop in my E70 but not just the 20v any of the 4A family. There is a lot of different ones out there and a range of prices from the Arospeed,NGK Power Cable, Ultra Blue Wire,TRD etc etc. Is it worth spending the extra $$$ on these expensive ones like the NGK & Ultra or are the Arospeed ones good enough ?

Cheers