To further continue aswell.
Okay, if you want to use 25 man heroic as a baseline (and Iron Qon of all fights???)
1. Could just chime in that the top monk did 426k dps
2. There are 303 paladin logs, 117 DK logs. Having a bigger sample size of paladins naturally increases their top 100 logs relatively to the DK logs. To stress that, the top100 DK includes the 16th percentile of overall DKs, while paladins top 100 includes the 67th percentile. Do you see the problem here? Why looking at Iron Qon 25H is completely irrelevant? It should not be that hard to understand. You cant take 300 warlocks and 100 mages, put them on dummies and say "Oh! The top 10 warlocks did more damage than the top 10 mages!". Naturally if you check the best 10 people out of 300 they will (probably) be better than the 10 best people out of 100. For reference to other classes there are 152 monk logs, 90 druid logs and 189 warrior logs.
3. Checking the top 1 log is never a good measurement. Having achieved several rank 1 logs myself as a paladin, I would not look at my own logs for comparison, as some of them involved cheesy tactics and not playing as intended, padding the meters. Just as an example, that paladin is using execution sentence.
4. Just to say again? Iron Qon? Really? Why use that as a baseline. Just checking top dks, you just have to go down about 15 logs to find DKs dual tanking it. Of course DK logs will be lower as not even one page of people have 1 tanked it as a dk (and logged it). So basically you are comparing the performance of about 10 people vs almost 100.
Even though I agree that checking 25H logs would be better to check pure vengeance scaling for future raids to balance out scaling so that it increases less over time without impacting current levels. The fact is that the 25H vengeance is in the current tier irrelevant to more players than it is relevant too, making it a bad baseline for judging the current tier. Add that on top of the fact the very low sample size in 25H, making it extremely silly to take logs from it. You can compare 300 vs 100 people. Or just check Durumu, 245 paladins vs 76 DKs? Yeah that makes a good comparison! 180 warriors vs 38 druids? Yeah! That will make perfect comparison.
This is also the reason why I also like to use normal mode raids as a baseline often, since the sample size is bigger giving a more accurate result.