i have only used General Hydroponics Flora series and Flora Nova series. They seem to work fine for me but others will have different opinions. Regardless what brand you purchase, most nutrients are either:
1) Vegetative Phase (grow)
2) Flowering Phase (bloom)
or
1) Base (used in all phases)
2) Vegetative Phase (grow)
3) Flowering Phase (bloom)
There are also many supplemental, cloning, rooting, rinsing, cleaning, and foliar feeding "nutrients" out there also.
So I'd recommend search around on the forums and check out the grow journals to see what others have had success using and replicate it.
The nutrients i use are:
BioBizz Root Juice
G.H. (General Hydroponics) Flora Hardwater Micro
G.H. Flora Grow
G.H. Flora Bloom
G.H. KoolBloom
G.H. Flora Shield
G.H. Flora Clean
G.H. Floralicious Grow
G.H. Floralicious Bloom
Spray N' Grow