THIS or THAT

Strategy

Legion or phalanx?

phalanx

rank of file? 

File

Sarissa or Pilum?

Sarissa   

Blitzkrieg or attrition warfare? 

Blitzkrieg

Ale or Vita?  

Ale 

airplane or helicopter?  

Airplane

Achaemenid Persia or Sassanian Persia?

Achaemenid 

Athenians or Spartans? 

Athenians

Aristotle or Plato? 

Aristotle  ...... ask me tomorrow it's gonna be Plato  

Parmenides or Zeno?

Didn't know them...  

Zeno

Trajan or Hadrian?

Hadrian

Venice or Milan? 

Venice  

Istanbul or Constaninople? 

(Or Bizantium?)

Constaninople 

Turks or Arabs? 

Arabs.

Gauls or Franks? 

Gauls 

Light blonde or dark blonde?

Either is good  

Hitites or Scithyans? 

Scithyans

Athena or Aphrodite? 

Athena

(Later it could be Aphrodite  )

4 strings bass or 5 strings bass?

Just now, Stormbringer said:

(Later it could be Aphrodite  )

I didn't know it exists .....reason enough to pick it  

5 strings bass

Lute or oud?