I am a pretty new grower, having grown only 5 times, all in DWC. I am in my first coco grow now, starting week 3 of flower. So far, the base stalk and branches on my plants are significantly thicker than they ever were in DWC and the the plants were way more robust during veg.
I am also using a lot more nutes. I treated about 7 gallons of water weekly for two plants in DWC. Twice that much with coco grow. It's also a little more trouble. With DWC I mixed nutes once a week and pretty much just had to control my pH from there. Now I am mixing nutes and feeding daily. It takes more time and effort, but I enjoy it. So, if the plants produce mo bettah with the coco I will prolly stick with it.