what brand of hps bulb will give me the dankest weed??

In your experiences whats the best hps bulb? ex.Hortilux, Sunmaster, Hiluxgro,Agromax?

I plan on using a 600w MH conversion bulb for vegg and then switching to HPS for flower.Im looking for a balance of yield and potency so i belive a cool HPS is what i need.Any suggestions?????

i use a 1000 Watt EYE HORTILUX SUPER HPS bulb and results are nice

Eye hortilux super hps : P