Battle of the bulbs... Which HPS 600 vs 1000

[acespicoli]

Had some pre conceived notions about this one, id like to see what everyone else thinks
The question is which one is better ? Why ?

 

[dogzter]

I get more out of 1000 than I do 600 almost like it's basic math.

Assuming the heat is handled correctly and the space is right size wise.
No point in 1000 over a 2 x 2.