A lot of the Hydro-nutrients
work well, especially or veggies.
Some types of plants will do better with some, but in general, they will all work if you follow their instructions. A lot of time I talk to people and availability plays more the part when it comes to what they use.
For Example...If you can drive a short distance and get General Products, use those, if it's something else, use that. IF your growing a specialty plant that needs a little more of something else then the other, check to see what the products have for information on the specific plant your working with.
Personally, I use the dry mixes, as long as I keep them dry they last indefinitely. I can get specified products, or General use products that will work on most all my different projects/grow. If I wind up with issues using it, I can get whatever other supplement needed and mix it different the next time.