My style is the overrated but effective Roman sledgehammer. Just all out brute
force (gotta love urban cohorts and legionary first cohorts). I utilize both
shear military number and the strength of the units i use. Doing this can be
be quite expensive though, so i build only 2 main forces, one that will go out
on campaign, while the other protects the homefront/key provinces. Good
relations is always needed with my neighbors so no one backstabs me. Also
lots of diplomats to bribe off invading armies if good relations happen to fail

All in all, military supremacy makes up my style. it's true numbers don't mean
everything in a battle, but if used properly, it's a force to be reckoned with