Quote Originally Posted by Fuzzyboy View Post
When your faction controls WG, you get stone keeper shards. 30 stone keepers shards = 2000 honor. Most dungeons can be done in about 30 mins, which is around 3-3500 honor per hour.
Bosses in heroics drop 2 shards per kill, and majority of the heroics have 5 or fewer bosses, so going with the 10 per 30min rule, it would take you ~2 hours with travel time to get to 3 instances to get 2k honor, netting you approximately 1k/hr...aka a pretty poor rate for honor.

They are a nice way to pad a couple points to grab a new piece "today instead of tomorrow" type thing, but instances aren't really a viable way to "farm" honor. Especially considering every2.5 hours you'd have to go win WG again just to continue farming.