Less Veg, More Plants or Longer Veg, Less Plants

I have a question that I have been meaning to ask for awhile.

Should I have a shorter Veg time (3 - 4 Weeks) and have more smaller plants?
or
Should I have a longer Veg time (10+ weeks) and have fewer but bigger plants?

This said, I will tell you a bit more about my setup and what I intend to do.
In the next two or three months I will being using my spare room once again to grow but this time going a lot better then my first.
I will be using 600W HPS (Air Cooled), Aero/NFT System (Modified version of Stinkbuds), C02 etc..

Here is a basic version of what the setup would be.

This is what my orginal idea was to do. Veg plants for four weeks and put 8 plants per 600W HPS.


Aim here I was hoping was 1.5 - 2 Ounces per plant

This is what I was thinking of when I meant less plants. Only have four plants that have been vegged for 10+ weeks per 600W HPS


Aim here was 3 - 4 Ounces per plant

When it comes down to doing this I was thinking of running one strain as a test trial.
Sometime like Northern Lights x Big Bud (Mostly Indica) that I have heard has a large yield.
What would the best for the system I am running more indica strains or more sativa strains.

Another reason I am asking this question is because less plants also equals risk if getting busted.
But am I asking for too much from these systems? What would be best to reach my aim?

I would always take the longer veg time because I love growing big trees :d

It's my understanding that aero is better for smaller plants. Not to say you can't grow some plump fuckers in an aero set up quite efficiently I think it's better suited for faster flips.