I've grown practically every single way possible over the years, except hempy?
All systems have their plus's and minus's. There is NO "best" system.
Personally, nowadays, about 75% of my grows are in a coco blend. Whether it's a automated sog setup, or growing trees. It's what works best for ME
Someone mentioned grostones. Yeah, I had to bust out a room or two with them, when they first came out

Don't float my fucking asshole! They claimed it doesn't float like hydroton. Bull fucking shit. Save your money and stick with hydroton if flood n drain, or even top fed. Grostones are bullshit
IMO!
Growstones are made from recycled glass products. Okay? Hydroton is fired clay. Is there a shortage of clay or something? Yeah, lets have the recycled glass end up in our landfills. Hey! It was recycled once! Lame
Sorry for the rant. It's just that I hate grostones.