Strength measures the raw power your character can use to hit an enemy, pry up deck plating, or carry a heavy load.
Athletics represents your character's overall physical condition: their ability to run for extended periods, jump long distances, absorb impacts, and endure the physical punishment .
Dexterity includes your character's reaction time and fine motor control, skills suited to piloting vehicles, aiming weapons, and tinkering with the innards of machines.
Intelligence sums up your character's overall mental capacity, including their ability to learn, reason, and apply knowledge.
Personality represents the strength of will, charisma, assertiveness, and other qualities your character needs to be a successful megacorp CEO or, more likely, a hero on the frontiers of BrikSpace
A Wisdom or Wits stat might be nice, but there really wouldn't be much to do with it. Aside from that, I think that all these need are clever names. Suggestions?
As a reminder, they have the same advance scheme as Skills at the moment, but they also influence the derived stats of HP, Armor Value, Initiative, and Move. Formulae for deriving those stats are on the list.
The working name for this system is BrikSpace. Once I have enough of a system to avoid embarrassing myself, I'll clear it with Mike Rayhawk, the creator of BrikWars. On that note, make sure that you don't use any trademarks, LEGO or otherwise, in the fluff. As far as I can ascertain, Futuron, Spyrius, Blacktron, et al are no longer trademarks.