lets assume a simple sentence:

la' Dun law' Hoch Dun puS
the greatest commander of them all

Can the {Hoch} have context ? And if you wonder what I mean, here it is:

la' Dun law' jogh Hoch la'pu' Dun puS
the greatest commander of all commanders of the quadrant

la' Dun law' Hoch la'pu' vIghompu'bogh Dun puS
the greatest commander of all commanders I have met

HoSDaj ngay'Daj je Dun law' Hoch novpu' HoS ngay' je Dun puS
his power and glory were greater than the power and glory of all aliens

are the above sentences correct ?

Common wisdom says they are. I have begun to question common wisdom on this.

I think there are two distinct law'/puS constructions, disregarding the numerous variations we've gotten over the years: the comparative and the superlative. I have begun to think that the superlative is invariant in its B noun phrase: A Q law' Hoch Q puS, and nothing but Hoch can be in the B position for it to remain superlative.

Our only example of how to give context to the superlative is our old friend from Star Trek V: qIbDaq SuvwI''e' SoH Dun law' Hoch Dun puS you would be the greatest warrior in the galaxy. Notice that this is not qIbDaq SoH Dun law' Hoch SuvwI'pu' Dun puS you would be greater than all the warriors in the galaxy. This latter is not a superlative, it is a comparative, and it kind of assumes that the addressee is not actually one of "all warriors." You might stick a latlh in there to signify other warriors, but the point remains: this is not actually a superlative.

Okrand used the topic suffix to provide the context. Let's do that with your examples.

jogh la'pu''e' la' Dun law' Hoch Dun puS
the commander is the greatest quadrant commander

la'pu''e' vIghompu'bogh la' Dun law' Hoch Dun puS
the commander is the greatest commander I have met

novpu' HoS'e' ngay''e' je ghaH Dun law' Hoch Dun puS
his alien power and glory are the greatest

(And remember that great here means wonderful, not large.)

-- 
SuStel
http://trimboli.name