Well, I default to you and James, obviously, but I'll be sulking for a bit. I guess that Lung and Schwartzkopf just have more *gravitas* in my mind and, as such, should get primacy in their chosen field.
Ghostwalker is top conjurer, however, has no doubt. 
And, as noted by another, I think Sirrug might be the beefiest physically. Doesn't mean much in THIS day and age, but hey. 
Gravity and dignity do not make you powerful, unfortunately. And among dragons, I'd be willing to bet that's a sign that they've learned their limitations, Likely the hard way. So they sit back and concentrate on doing what they do.
I imagine Schartz as The Teacher and Lung as the Philosopher. Lofwyr's the Lord. Ghostwalker is the Conjurer. Hestaby is the Sorceress. Sirrug is the Destroyer.
Hrmm, I actually like that, assigning titles to the dragons. Anyone got any more (or better ones?) I imagine most Dragons have their niche, their role.
Implied a bit with their actual names in some areas, I think, but, hrm.
Masaru would be the Prodigy, both young and talented.
Arleesh would be the Purifier.
Celadyr would be the Linguist, normally a minor thing but, in the Sixth World, the Matrix was a boon for him.
Alamais is the Hater. Because haters gonna hate.
