Folgers Singles make the best coffee (IMO)

Or at least, I've never had any coffee that was better. I've had some that was just as good, and a lot that wasn't as good.

My older brother is a "coffee dork" and when I was visiting him in AZ in 2008/2009, I tried all manner of hoity-toity coffee. He had a $5,000 commercial coffee machine at home that would grind the beans, compress the grinds into a "puck," and then brew it, leaving what he called a "crema" on the surface of the coffee. I thought his coffee tasted okay, but not as good as Folgers Singles. Also, no matter what brand of hand-picked-by-Juan-Valdez-himself-and-blessed-by-the-Pope coffee beans he bought, it all tasted pretty much the same.

On top of that he took me to every highfalutin coffee joint in Tucson, and all their coffee tasted very similar to the stuff he made at home; some of them were even using the exact same make/model of machine that he had at home.

For my money, the only thing coffee needs is to taste like coffee and nothing else, i.e., sour coffee sucks, bitter coffee sucks, and sour + bitter coffee sucks the hardest. Folgers Singles taste like coffee that's neither sour nor bitter (and if you use a decent method of brewing, regular pre-ground Folgers in a can tastes pretty much the same).

The only problem is that they're on the expensive side, but at least you don't have the downsides associated with a coffee machine, such as inaccessible tubing that needs to be cleaned periodically (you just have to trust that running some concoction through the machine will effectively clean it), and plastic parts that may leach stuff into your coffee and alter its flavor.