Your most commonly trained unit

[Zim]

Hmmm...

MTW:VI Either plain old Vikings, or Gallowglasses.

RTW: Probably Hastati, but only because I tendd to finish the game before having much time to play around with legionaries.

EB: Classical hoplites, largely because even when I wasnt playing the KH I'd still hire them as mercs all the time. A possible contender would be those early swordsmen the celtic factions get, the fellows with the longsword who actually wear shirts (can't rmember the name. ).

MTW2: Hard to say, probably either Italian Militia or dismounted Dvor (the former as a bread and butter unit, and the latter as one of my all around favorite units and main component of my Russian armies).

Broken Crescent: So far, Sudanese Longbowmen, or maybe Saracen militia (crappy but cheap and plentiful). This will likely change as I try more factions.