Paragon are great at downing bosses yes but the truth is paragon isnt a realistic guild model that 99% of us are using heres why. We have all watched some of paragons more notiable boss kills since cata launch one being Nafarien where in thier group they had upwards of 15 or more druids in thier guild run to take advantage of a particular boss mechanic. But then you see Paragon down a diffrent boss running with almost a whole diffrent group makeup.
The fact is that paragon always has thier Guild raids stacked with whatever classes will provide them with the best possiable chance of downing a boss.
They have so many geared members specifically who wanna get world first kills at thier disposel that they can have a group with 20 rogues one fight and no rogues the next.
Most guilds do not have those means available so we actaully have to WORK HARD with what we have from boss 1 - 12 running with the same people and classes to down bosses.
I give credit where credit is due and the only credit I give paragon is that they have such a huge guild they can stack thier teams to offer the best possiable outcome, but I do not credit them for being the best raiding guild in WoW.