If you plan on growing in soil, I'd suggest Fox Farm or Gen Hydro. If your going hydro then theres GH, H&G, CNS 17 and alot of other nutes out there. Personally, I like GH and I'm gonna switch over to them from FF, don't focus too much on nutrient companies, keeping your environment in an ideal range and having good light for your plants is alot more important. I've seen great grows from different people with alot of different nutes, but they were only able to have success because they had there temps, RH, lights, ventilation and everything else almost perfect. So whatever nutes you decide to use just dial them in and focus on giving your plants a near perfect environment.