Given 28-point-buy, if you spread stats as evenly as possible (14/14/12/12/12/12), you get 8 advantages.
If you min/max as much as possible (18/16/10/8/8/8), you get 7 advantages, and 3 disadvantages. I don't see any way to have more than 8 advantages, aside from racial bonuses.
So, all you...