I know I've not been around to soak up the rays of wisdom from the stars here at Appliantology of late. However, a recent discussion with someone interested in laundry detergent/soap that works in cold water soon devolved into "I want a more natural, less chemical clean" chat.
Having a small herd of people making dirty laundry around here, I'm highly interested in a detergent that "just works." To that end, we've discovered that powdered Tide HE works pretty well in my house. (The liquid leads to stinky front loader problems that have been solved by using the powder at a rate of about 2 Tbsp -- much lower than the amount recommended on the box -- for a typical full load in my LG front loader.) I've also had good experience with the Sears Ultra Plus HE.
I'm doubtful that any of the mere "washing soaps" that lack enzymes and a detergent's better cleaning in hard water would ever keep up with a modern laundry detergent, especially since being "natural products" means they'll cost more for the privilege. But I could be wrong.
So, my dearest appliance professionals, what are your recommended favorite detergents (HE and not) and why?