I honestly don't see any of those guys being fantastic options. Obviously Rielly is the most valuable player in our organization at the moment and, out of that list, will likely end up being the best NHLer, but that doesn't mean he should be the captain. If this team is going to go through a rebuild and be awful for the next 3-4+ years, I don't want our captain to be one of our young, promising players...I think that's way to much negative pressure to put on them (i.e. what Phaneuf has been going through since getting the 'C').
If I had to choose from that list, I'd choose Komarov. He's an older player who can lead by example, yet no one expects him to carry this team offensively or defensively. He's well liked by both the players and the fans, would be a good role model for the younger players, and could help deflect some of the pressure away from guys like Rielly, Brown, Nylander, etc.