But again, that's because nobody plays Arms. If you look at individual boss damage, your ranks are higher due to lack of competition (though you could very well remain #1 even with competition); however your boss damage is typically lower.
Edit: compared yours with mine and you are beating me on overall dps on 8 fights, I'm beating you on 6. Ofc your ranks are 1-2, mine are mostly 10s+. That's direct lack of competition on your part. Not saying you couldn't beat that competition but or example, your #3 Sha is only 30k dps higher than my #154. /blame our strat, but I could easily beat any rank you could put out given the chance.
There are a couple variables, mainly heavy Cleave fights like Protectors, but saying you out perform him, or most Fury Wars is a misnomer. You out rank them.
Now, deciding which spec takes more skill to rank in, or who is playing at a higher skillcap (theoretical dps vs actual) is a completely different, and largely unquantifiable, story.
Edit: also pointing out that your admitted to boosting for ranks and that you often get yourself killed trying, I'd get gkicked if I tried half the stuff you do! Lol.