Good, cheap, healthy fert and nutrients?

Im not sure what type of fertilizer and nutrients i should be using on my plants. What we have is we have some Nufarm fertilizer that we got for free for buying some other stuff. Theres 3 bottles:

Nufarm Bloom:
Total Nitrogen 0.0%
Phosphorus 5.0%
Potassium 4.0%
Magnesium 1.5%

Nufarm Grow:
Nitrogen 2.4%
Nitrate N 1.9%
Ammonium N 0.5%
Potassium 5.6%
Magnesium 0.55%

NuFarm Micro
Total Nitrogen 5.4%
Nitrate Nitrogen 4.9%
Ammonium Nitrogen 0.5%
Phosphorus 0.0%
Potassium 1.1%
Calcium 7.0%
Boron 0.018%
Iron 0.13%
Manganese 0.36%
Copper 0.0077%
Zinc 0.018%
Molybdenure 0.00046%

We also have Peters Professional: Super Blossom Booster Plant Food
"For all flowering plants"
"Water soluble 10-50-10 With Micronutrients

Other information about these is availiable, but can someone tell me if i should really be using these, and if they will do alot of good, i dont really know what other people use so any help is appreciated.

i actually forgot to add the plant food we have, but we havent used it in awhile. Let me know what you guys think.
"Schultz Expert Gardener All Purpose Plant Food"
"Concentrated, Water Soluble, With Micronutrients"
20-30-20

i have used Schultz All Purpose Plant Food 20-20-20 and had nice results. i beleve 20-20-20 is a good gole to shoot for.

although, a boost of the phosphorus right before the flowering phase is good. 20-30-20
would be a nice fert for flowering. i've never used nufarm so i don't know much about them.