For what it is worth I have 7 Bible versions, and the most accurate is the Jerusalem Bible. (Catholic). The second most accurate is the Oxford NRSV, and the third most accurate is the Darby version.
e.g. :
See Zechariah 6 1 - 6 Jerusalem Bible.
Zechariah 6 1 - 6 : "Again I raised my eyes, and this is what I saw: four chariots coming out between the two mountains, and the mountains were mountains of bronze. The first chariot had red horses, the second chariot had black horses, the third chariot had white horses and the fourth chariot had (vigorous) piebald horses.* I asked the angel who was talking to me, I said 'What is the meaning of these, my lord?' The angel answered,'These are going out to the four winds of heaven after standing before the Lord of the whole world. The red horses are going out to the country of the East; the black horses are going out to the country of the North; the white are going out to the country of the West and the piebald* are going out to the country of the South.' "
* Note: The Jerusalem Bible calls the horses of the fourth chariot: "(vigorous) piebald". Other Bibles call them as follows:
Jerusalem Bible : ............................ (vigorous) piebald
King James Bible : ........................... grisled and bay
Darby Bible: ..................................... grizled strong (vigorous)
Revised Standard Bible : .................. dappled grey (uncertain)
New American Standard Bible : .... . strong dappled
New International Bible : ................ dappled, all powerful
This is clearly a case where the meaning of the original Hebrew word has been lost. I suspect that "deathly pale", (in line with Revelations 6 7 ), might be a more accurate translation.
Note: Only the Jerusalem Bible has in my opinion given the correct translation of which direction the various horses go in. Other Bibles give directions as follows:
Jerusalem Bible : ................................ red east, black north, white west, piebald south.
King James Bible : .............................. black north, white after, grisled south.
Darby Bible: ........................................ black north, white after, grizled south.
Revised Standard Bible : ..................... black north, white west (after them), dappled south.
New American Standard Bible : ......... black north, white after, dappled south.
New International Bible : ................... black north, white west (or after them), dappled south.
If you want further details on why I consider the Jerusalem Bible the most accurate in this instance, say so, and I will PM you the reasons.