What's the best way to clean vinyl records?

BPoletti- yes, probably more. But, I think you'll agree, that there are
probably that many different methods, approaches and favorite machines,
fluids and different combinations of steps or sequences. I never used the
DiscDoctor, from what I gather, it requires multiple rinses, and several
plays, according to the manufacturer (at least with the Miracle Cleaner, not
the one-step) , before optimal results are achieved.
In the fluid world, I have used enzymes (from Walker as well as AIVS,
which cut my work time in 1/2), along with a variety of other fluids I'm
playing with now (Monks, the TM-8 reboot of the old Torumat, and Hannl,
among others). Everybody seems to have their favorite. I have found the
enzyme cleaners to be very effective if followed by a pure water rinse.

I've used Miracle Record Cleaner for years. No second rinse.

I don't agree that there are multiple "best" methods of record cleaning. There are only alternatives which are of varying effectiveness. My preference is to apply chemical solution to the kinds of dirt that would be in the grooves.

B Poletti, when you say 'no second rinse,' I take that to mean you are doing a rinse step with water after the DD, just not multiple rinse steps, right?

The best way is to keep them clean.
The second-best is to use anti-static brush to sweep off the dust before landing needle.
Record cleaning machines are third-best.
Spraying and rinsing with cloth is one to void.

Hand scrub with favorite cleaner juice, dry with micro-towel and finish in KL Audio Ultrasonic cleaner. You cannot get a record more clean and static free. It is really that simple.