I believe Paradox Vicky is one of the best computer-grand-strategy games ever made. I wish you can add as much of the good ideas these great paradox boys have done.
However, it is hard to master, several long-time-wargamers friends of mine didnt ever tried. (They played CK/EU or HoI, as they are not so ultra-detailed).
I vote for MORE nanomanagement!!!

... Although i understand you should go for less ... you must earn your living. (But still hope some advanced version for addicted & mad for the detail people could be released, once costs could be payed...)
The main problem i can see in paradox games is that they are "too" open so history can go wild, playing as a minor italian county you can win the game on hard setting by turning into an unrealistic enormous-sized empire... Well, they tried 300 years history so... hope you can upgrade it.
The best thing in Vicky is how simulated the fight of classes for their rights... i e the inner-political theme. Also, the way it simulates economy--- exploit populace to turn into a wealthy country-> being the one that more "Added Value" can "export"...
The military thing seemed secondary to me in Vicky.
About translations...
"Vanagloria de las Naciones" could be an exact translation, but normal spanish language does not use it...
I believe the title should go "Vainglory of Nations", and then in small letter down -> "Gloria y Vanidad de las Naciones" (similar to french translation somewhat comented) it should be more understandable, and keeps the idea.
It remembers me of AH -> "Rise and Fall of the Third Reich" -> "Auge y declive del tercer reich"