armored elephants are clearly the best overall... they do everything and kill everything. They even batter wooden down doors for you!

failing that...

urbans. Not only are they tough, they get to throw two javelins and slaughter crap even before enganging. Plus they are way more mobile that phalanxs. Not quite as invincible on defense as a refused line of phalanxes supported by archers... but way way better on offensive and in cities.