Well, as per the title, atm, I'm running all heroics, 5man, 10man and 25man. However, I found out, during 5man runs, my damage dealing wasn't among the top 3. Then in 10man and 25man, I can consistently dish out damages within the top 5 or top 10.
Its no good saying you're number 3 on the meter when we know nothing about the 2 guys above you, they might be fully epic'd hunters or something
Your gear is pretty decent so I would be expecting you to put out some decent dps in a 5 man, but warriors are affected a lot by buffs like kings and gift of the wild, so dps in a 5 man can vary a lot.