Now only what remains is one of Beta testers to answer my first question i believe
Then let me take a crack at it

Generally, there is no "winning formula". There are several paths available to every race (though some races are better at specific ones than other races) and all are viable and largely depend on your opponent's strategy and the map you're playing. For example, you can set up an economy so great that you can pump out however many ships without blinking, but then in the time it takes to set it up, your opponent may just be researching combat techs so that even though you can have more ships, his can be upgrades and still give your fleets a run for their money. Things like that

In my experience, a lot of the more traditional RTS games have one because extremely quick and crippling rushes are possible, and so whoever knows the optimal way to rush usually wins over the player who doesn't.
In Sins, this really isn't possible. Obviously, some build queues and research queues are better for some maps than others (for example, you wouldn't spend resources on researching ice/volcanic colonization if there are no immediate ice/volcanic planets you need to colonize), or you wouldn't spend lots of resources on building lots of trading ports if you're playing a very small map because the investment doesn't pay off.
It *is* possible to "rush", although in Sins terms that takes more than 5-10 minutes as in the more traditional RTS games (Starcraft, SupCom, Warcraft 3, etc), and an effective rush carries a lot of risk to it. Basically, to win you need to bombard planets to destroy the enemy colonies, and you either need specialized ships for that, or lots of capital ships to do it in a reasonable amount of time (the single capital ship you start with in the beginning can take over 10 minutes to bombard the home planet by itself).
So basically, it's very possible to be militarily active quickly, but it's not easy to win a game with a "quick rush". Obviously anyone experienced will be able to beat a very green player without too much hassle, but I do feel that Sins does a good job of giving people time in the beginning of the game to get it rolling and not lose in the first 5 minutes due to a rush and get left with a "Well WTF just happened?" feeling.