"Best" is completely subjective. I can only tell you what has worked best for me out of the handful of brands that I've tried, and that's the Foxfarm trio(google it).
If this is your first grow than...I would A) do your homework on google like the guys previously said(take you a half hour)----B)it is personal preference on which nutes to use-----C) since its your first grow stick with something like pk 13-14 nice and simple to use and if you like add a little molasses 3 weeks before harvest