59 brackets and 69 brackets are also quite server dependant.

I found that on KT when I was lvling my rogue that staying in the 60-69 bracket for AB/WSG was more beneficial because horde would always steamroll the ally even in PUGs so it was a good source for honor and especially tokens. In the 70 bracket it can be a hit and miss but we now do fairly well (except AV but that is 61-70 anyways) so it depends on your server really. You do get less honor the further away you are from 70 however.