I like the Egyptians the most as they have a very unique range of units. I like their Bow-Sword hybrids, their crazy axemen, their wide selection of phalanx and of course, their devestating chariots. It doesn't hurt that they are in the wealthiest part of the map and they are effectively fighting on just one front.

Their dialog and messages are cool too. They are so zealous and unforgiving.
I especially like the message you get when an Assasin dies on a mission.

They might not be historical, but they sure are fun.