I've been using the TechnaFlora line.... basically since I started giving my plants nutrients. The in law has tried others (Remo, Fox Farms) but none of them have ever given better results.
I give the Veg ones in small doses at first, and then once my plants start to flower, I switch to those (a few of them you give each week on both sides of that) and the Sugar Daddy one, you give extra before harvest which has been in my experience excellent.