I think it depends what exactly you are after.Whilst the Deagostini Victory has a plausible likeness to the prototype,the boxy stern and some of the hull form are a little off from where it should be.
If you buy the Deagostini version (not Artesania) you do get a plethora of documentation so that a complete beginner can build the model successfully.That was the whole ethos behind these partworks.I have seen some very nice models built from it.
Now the big BUT.If you buy this model and want to start bashing it to a more accurate version,you really will be throwing money and time away.In this instance,I would buy the Caldercraft kit without a second thought.Provided of course you have the space as it is a little larger.The Caldercraft kit,to my knowledge,only suffers from the lack of split,scarphed skid beams to support the boats,everything else is more or less on the money.
From a cost point of view,both are expensive,however neither is going to take you a few weekends to build.The Caldercraft kit works out 3-4000 hours to do properly.I have seen one built in a lot less than this but quality of finish did suffer drastically.
Also take into account,because you won't find the need to change anything on the Caldercraft,the only added expense if you already have a basic toolkit,is paint,glue and brass blackener.
Kind Regards
Nigel