After what we saw in dragon age 2 I am extremely wary of Flemeth now. And possibly Morgan especially if she has the child with the soul of the old gods. My warden commander has enough influence on people in the land that if he needs to he can come back and stop any conflicts that may arise in Ferelden or Amaranthine. My Hawke can likewise help with the mage situation. However with that being noted there are a lot of variables that are unaccounted for and could lead to many problems especially if Anora is sitting on the throne alone or an unhardened Alister is.

Going with my playthough I have this situation:

Rogue Human Noble Warden married to Anora, Warden Commander, did the dark ritual, solved the problem between the wolves and the elves without killing either camp in mass, put the aeducan on the throne, sided with the mages (I think). He spared Amarathine and fully upgraded the keep. He stopped the harvester and didn't go with Morgan. Unhardened Alister, saved Arl Eamon's family, and was otherwise a pretty generous dude.

Though this is not my decided character my last character from Dragon Age 2 was a warrior whom sided with the mages and kept Fenris alive. He was practical above everything and didn't pull punches against everyone but Fenris didn't get his quest resolved and he didn't hand over anyone to the Arishok of the Quanari.