Heh no offense to anyone, but I think everyone would rather be a teen than be forty.
Younger > Older, no matter how you see it. I hate getting old, dying is easy, its wondering when you'll die that's hard.
On topic though.
AN > Humbolt for Coco/Hydro
Dyna = Poop in my opinion
Jacks All 20 = PERFECT for anything BUT DWC.
Humbolt makes a mighty fine additive
That's all I got, I only grew fruits/veggies though, I'm on my first Cannabis grow now.
This thread is not going anywhere sadly though, hes asking for side by side comparison pictures, most people on here don't have time for experiments.
Heres my take on what I'd purchase from these companies
AN - Big Bud, Overdrive, Final Phase, B-52, Voodoo Juice, & Rhino Skin (All for non organic of course, AN does make a organic line though.)
Jacks - Jacks All Purpose 20-20-20 Plant Food (Only thing you'll need ever really)
Humbolt - Gravity, Snow Storm, Purple Maxx, Snow Storm Ultra (All 3 combined in one bottle)
Dynagro - None (Personal opinion)
Fox Farms if you're growing in their Ocean Forest, I swear I saw a close friend do a grow with their 3 part nutrients and their soil and his plants never had a single problem. They were beautiful green the entire grow.