Best one step liquid record cleaner.???

L'Art du Son is the one I prefer. You have to respect proportions of water and cleaning fluid and let it rest 2 mInutes on the record  before rinsing and the music sings. AI n°6 is really good too but you have let it rest a few more minutes before drying.

good information here

http://forums.stevehoffman.tv/threads/a-very-long-primer-on-record-cleaning-fluids.58986/

one more thing to add if your looking for Distilled water try looking for commercially available  battery level distilled water its particulate level is much lower then the regular stuff you buy at the drug store.  this is the type of water they use in large battery banks that are much more susceptible to contamination and stratification then batteries like in your car. ( like submarine batteries ;-)

Nitty Gritty Pure 2

I use the Audio Intelligent #6 One Step as well, and have for years.  I can't compare to anything else, but it certainly seems to work well for me.

Thanks to all have responded to this thread.   Cheers,  S.J.