Survivability: Cataphract Archers vs. Pontic Chariot Archers

[Elephant]

Hi everyone,

Well, the title pretty much sums up my question: Who is better at surviving ranged attacks? The super-heavy armour if the CAs, or the multiple hitpoints of the chariots?

I did a Custom Battle test, and the CAs seems to win, but yet, whenever I play my Armenian campaign on VH/H, I get ones and twos of CAs dying per volley from conventional HAs!!!

Also, I would like to know which one has better stamina? This is so I can rely on the Cantabrian Circle in case I need to have a shoot-out with enemy archers.

Can anyone share some knowledge? Thanks!