sinbad

I use a castrol spray wax which is whitish when cold but seems to become clear when warm. Waxes seem too thick to do much at first, but if you apply one to a really warm chain, you see it working.
I think they're all basically good enough, I used Wurth dry lube spray before and it was great. I think it's more important to keep the chain clean so whichever lubricant you use has a fighting chance to work properly.