Advanced Nutrient growers, I have a question.

I'm trying to get my facts straight on AN. I love their products, don't get me wrong; but, it's hard to figure out which nutes are a 'must' and which are 'iffy' or circumstantial.
(By circumstantial, I mean is it only good if you are growing small plants v. big plants, hydro v. soil, sativas/indicas, etc).

So AN users, what are your top 3 MUST HAVE nutrients in your line-up, and why?


Edit: ALSO, please state if you grow organic or not. Some of the nutrients have 'organic' counter-parts. If you list one and happen to know it's counter-part, can you list it? (Sensi grow v. Iguana grow or something to that measure) Thanks! Not a must, but it could be helpful.

I've been testing a few to try for different yields. I'm using Sensi A/B, and testing out Nirvana and Sensizyme. So far, they are working out well. I like both the Nirvana and Sensizyme because I can use them on both my vegging and flowering plants. Both seem to increase the overall heath of the plant.

Iguana juice Bloom, Nirvana, and Overdrive. I use Big bloom to replace big bud if im growing in soil. it works great. and the overdrive makes them huge in week 5 and 6

Conneisour (spelling?) A andB, tarantula, rhino skin. I use a lot more but those 3 alway stay in stock. I use age old for veg, cheap and the results are above satisfactory so I save money where I can. Ill never get rid of my conneisour tho, call me a whore idc I love this shit, just wish they would up the N some more.