Which unit vs units

Not sure about a list, but you can orient on the attack bonus multiplier. Of course not every units have it. Like champion have massive infantry armor and overall good stats make him good vs Infantry. I may write down a list with my own opinion if you really need a list!

 

Probably not as quick, but if you look at the tech tree you can mouse over each unit to see what they have a bonus against and what armor they have as a base too. The actual multiplier strengths are different between PvP and PvE but the counters are all the same.

Top left button lets you bring up the civ list to swap from Greek, etc btw.

The short(ish) version is probably:
Speaman beats cavalry, swordsman (and axeman and Persian immortal) beats infantry, melee cavalry other than lancers beat either cavalry or ranged depending on which one they are (eques does both, OP!), bowmen beat infantry, javelin throwers beat ranged, mounted archers beat cavalry, chariots deal a lot of damage don't really counter anything, elephants beat buildings and unmounted units other than spearmen, lategame infantry are either area damage that beat everything if it gets close (Celt champions and Norse berserkers) or are a super mobile ranged counter (Celt woad raiders and Norse ulfhedinns), siege is good against buildings but the ranged ones are often good vs unmounted armies as well

also firefox wants to translate ulfhedinn to mujahedin lmfao