Powerless as he is, I'm sure that the prince-consort has plenty of spare time. Anora is more than happy to handle all royal duties.
All? As opposed to just her usual half? Mmmm... no, I believe Anora described the King's presence in Denerim as a "great relief", and this is why the King declared joint-rule at the Landsmeet, to split the burden between the two monarchs. Now that the Hero King has left to find a cure for an ancient evil curse, and the full burden is on the Queen, Ferelden has practically gone to the Void without him. Some say the King's absence weighs heavily on the Queen's mind (Inquisition codex). No doubt she longs for the days when she kept the banns placated while her Hero King rode out to exterminate the Darkspawn threat, save the city of Amaranthine, build up a great fortress with an even greater army, and prevent food riots all while dodging the coup attempts by yet more traitorous lords and ladies.
I would never choose anyone but Nathaniel. It just seems to be the perfect choice and the best way for him to redeem the Howe name too, proving that the name does not make the person.[/size]
It's said he also saved Teyrn Fergus Cousland from bandits.