Well, last week I only got 61k honor and went down from 80% to 75%, though last week I wasn't really trying. If I really try and push myself to go into BGs, I can easily get over 100k in a week. I think my highest was like 180k one week of really pushing everything; jumped a whole rank that time.

As for grouping, I typically go PuG'ing, though sometimes when a group does well and most people stay in the group, I stay with it for another round or more (depending on whether we win or not, usually). I did do a week of planned-group BG once, which got me 120k for the week. However, especially during AB weekend, PuG'ing typically gets more honor since you get into more BGs (joining as a group you can only get in when there's space for the whole group), and even if you don't win in an AB, you still get a fair amount of honor depending on how long you hold the other side off.