Jacks seems to be the most popular pick for those who want an easy solution to growing quality bud, I know a few great growers who use it.
I’ve used Promix #4 with the following for years (I’m using Promix HP currently) I’ve never been one for easy. I run a mix of Botanicare (Karma, Bloom and Veg), Roots Organic HPK and General Organics Bioweed. I’m also using SFL-100 once a week to clean the roots.
Since I switched to LED’s I’ve started using CalMag regualo